172136460 has 48 divisors (see below), whose sum is σ = 498607200. Its totient is φ = 44319744.

The previous prime is 172136443. The next prime is 172136473. The reversal of 172136460 is 64631271.

It is a super-2 number, since 2×172136460² = 59261921722663200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47725 + ... + 51204.

It is an arithmetic number, because the mean of its divisors is an integer number (10387650).

Almost surely, 2^172136460 is an apocalyptic number.

172136460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172136460 is an abundant number, since it is smaller than the sum of its proper divisors (326470740).

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

172136460 is a wasteful number, since it uses less digits than its factorization.

172136460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98970 (or 98968 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 172136460 is about 13120.0785058627. The cubic root of 172136460 is about 556.2768103898.

The spelling of 172136460 in words is "one hundred seventy-two million, one hundred thirty-six thousand, four hundred sixty".