172545882 has 16 divisors (see below), whose sum is σ = 356991840. Its totient is φ = 55531952.

The previous prime is 172545871. The next prime is 172545929. The reversal of 172545882 is 288545271.

172545882 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 495648 + ... + 495995.

It is an arithmetic number, because the mean of its divisors is an integer number (22311990).

Almost surely, 2^172545882 is an apocalyptic number.

172545882 is an abundant number, since it is smaller than the sum of its proper divisors (184445958).

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

172545882 is a wasteful number, since it uses less digits than its factorization.

172545882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991677.

The product of its digits is 179200, while the sum is 42.

The square root of 172545882 is about 13135.6721183196. The cubic root of 172545882 is about 556.7174910667.

The spelling of 172545882 in words is "one hundred seventy-two million, five hundred forty-five thousand, eight hundred eighty-two".