172052172 has 36 divisors (see below), whose sum is σ = 460494216. Its totient is φ = 53976960.

The previous prime is 172052171. The next prime is 172052197. The reversal of 172052172 is 271250271.

172052172 is a `hidden beast` number, since 1 + 72 + 0 + 521 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (172052171) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139954 + ... + 141177.

It is an arithmetic number, because the mean of its divisors is an integer number (12791506).

Almost surely, 2^172052172 is an apocalyptic number.

172052172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

172052172 is an abundant number, since it is smaller than the sum of its proper divisors (288442044).

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

172052172 is a wasteful number, since it uses less digits than its factorization.

172052172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281158 (or 281153 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 172052172 is about 13116.8659366481. The cubic root of 172052172 is about 556.1860004304.

The spelling of 172052172 in words is "one hundred seventy-two million, fifty-two thousand, one hundred seventy-two".