172980131 has 8 divisors (see below), whose sum is σ = 176039760. Its totient is φ = 169934688.

The previous prime is 172980127. The next prime is 172980139. The reversal of 172980131 is 131089271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 172980131 - 2² = 172980127 is a prime.

It is a super-2 number, since 2×172980131² = 59844251441554322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172980139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22745 + ... + 29381.

It is an arithmetic number, because the mean of its divisors is an integer number (22004970).

Almost surely, 2^172980131 is an apocalyptic number.

172980131 is a deficient number, since it is larger than the sum of its proper divisors (3059629).

172980131 is an equidigital number, since it uses as much as digits as its factorization.

172980131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7093.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 172980131 is about 13152.1911102295. The cubic root of 172980131 is about 557.1841331087.

The spelling of 172980131 in words is "one hundred seventy-two million, nine hundred eighty thousand, one hundred thirty-one".