172718052 has 24 divisors (see below), whose sum is σ = 434009856. Its totient is φ = 53143968.

The previous prime is 172718003. The next prime is 172718069. The reversal of 172718052 is 250817271.

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, 553428 + ... + 553739.

It is an arithmetic number, because the mean of its divisors is an integer number (18083744).

Almost surely, 2^172718052 is an apocalyptic number.

172718052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

172718052 is an abundant number, since it is smaller than the sum of its proper divisors (261291804).

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

172718052 is a wasteful number, since it uses less digits than its factorization.

172718052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107187 (or 1107185 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 33.

The square root of 172718052 is about 13142.2240127004. The cubic root of 172718052 is about 556.9025977498.

The spelling of 172718052 in words is "one hundred seventy-two million, seven hundred eighteen thousand, fifty-two".