172932165 has 48 divisors (see below), whose sum is σ = 355275648. Its totient is φ = 79050816.

The previous prime is 172932161. The next prime is 172932169. The reversal of 172932165 is 561239271.

172932165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (172932161) and next prime (172932169).

It is not a de Polignac number, because 172932165 - 2² = 172932161 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172932161) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1662 + ... + 18671.

It is an arithmetic number, because the mean of its divisors is an integer number (7401576).

Almost surely, 2^172932165 is an apocalyptic number.

172932165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

172932165 is an abundant number, since it is smaller than the sum of its proper divisors (182343483).

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

172932165 is an equidigital number, since it uses as much as digits as its factorization.

172932165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20360 (or 20348 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 172932165 is about 13150.3674853595. The cubic root of 172932165 is about 557.1326274538.

The spelling of 172932165 in words is "one hundred seventy-two million, nine hundred thirty-two thousand, one hundred sixty-five".