<img src="https://assets.podomatic.net/ts/3f/ee/e6/michaeld/1400x1400_2826679.gif" alt="itunes pic" /> 1hundredandforty1 
140 is an abundant number and a harmonic divisor number. It is the sum of the squares of the first seven integers, which makes it a square pyramidal number, and in base 10 it is divisible by the sum of its digits, which makes it a Harshad number.
The sum of Euler's totient function φ(x) over the first twenty-one integers is 140.

1hundredandforty1 140 is an abundant number and a harmonic divisor number. It is the sum of the squares of the first seven integers, which makes it a square pyramidal number, and in base 10 it is divisible by the sum of its digits, which makes it a Harshad number. The sum of Euler's totient function φ(x) over the first twenty-one integers is 140.

1hundredandforty1&nbsp;
140&nbsp;is an&nbsp;abundant number&nbsp;and a&nbsp;harmonic divisor number. It is the sum of the squares of the first seven integers, which makes it a&nbsp;square pyramidal number, and in base 10 it is divisible by the sum of its digits, which makes it a&nbsp;Harshad number.
The sum of&nbsp;Euler's totient function&nbsp;φ(x) over the first twenty-one integers is 140.

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