172368312 has 32 divisors (see below), whose sum is σ = 433783680. Its totient is φ = 57074400.

The previous prime is 172368289. The next prime is 172368353. The reversal of 172368312 is 213863271.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20158 + ... + 27405.

It is an arithmetic number, because the mean of its divisors is an integer number (13555740).

Almost surely, 2^172368312 is an apocalyptic number.

172368312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

172368312 is an abundant number, since it is smaller than the sum of its proper divisors (261415368).

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

172368312 is a wasteful number, since it uses less digits than its factorization.

172368312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47723 (or 47719 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The square root of 172368312 is about 13128.9113029223. The cubic root of 172368312 is about 556.5264495985.

The spelling of 172368312 in words is "one hundred seventy-two million, three hundred sixty-eight thousand, three hundred twelve".