3172764156 has 12 divisors (see below), whose sum is σ = 7403116392. Its totient is φ = 1057588048.

The previous prime is 3172764151. The next prime is 3172764157. The reversal of 3172764156 is 6514672713.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3172764151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132198495 + ... + 132198518.

It is an arithmetic number, because the mean of its divisors is an integer number (616926366).

Almost surely, 2^3172764156 is an apocalyptic number.

It is an amenable number.

3172764156 is an abundant number, since it is smaller than the sum of its proper divisors (4230352236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3172764156 is a wasteful number, since it uses less digits than its factorization.

3172764156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264397020 (or 264397018 counting only the distinct ones).

The product of its digits is 211680, while the sum is 42.

The square root of 3172764156 is about 56327.2949465887. The cubic root of 3172764156 is about 1469.4199442186.

The spelling of 3172764156 in words is "three billion, one hundred seventy-two million, seven hundred sixty-four thousand, one hundred fifty-six".