172257160 has 64 divisors (see below), whose sum is σ = 395176320. Its totient is φ = 67568640.

The previous prime is 172257149. The next prime is 172257179. The reversal of 172257160 is 61752271.

It is a super-3 number, since 3×172257160³ (a number of 26 digits) contains 333 as substring.

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, 714640 + ... + 714880.

It is an arithmetic number, because the mean of its divisors is an integer number (6174630).

Almost surely, 2^172257160 is an apocalyptic number.

172257160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172257160 is an abundant number, since it is smaller than the sum of its proper divisors (222919160).

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

172257160 is a wasteful number, since it uses less digits than its factorization.

172257160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 522 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 172257160 is about 13124.6775198479. The cubic root of 172257160 is about 556.4067981989.

The spelling of 172257160 in words is "one hundred seventy-two million, two hundred fifty-seven thousand, one hundred sixty".