172064235 has 64 divisors (see below), whose sum is σ = 327628800. Its totient is φ = 77051520.

The previous prime is 172064203. The next prime is 172064261. The reversal of 172064235 is 532460271.

It is not a de Polignac number, because 172064235 - 2⁵ = 172064203 is a prime.

It is a super-2 number, since 2×172064235² = 59212201932270450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 272370 + ... + 273000.

It is an arithmetic number, because the mean of its divisors is an integer number (5119200).

Almost surely, 2^172064235 is an apocalyptic number.

172064235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

172064235 is a deficient number, since it is larger than the sum of its proper divisors (155564565).

172064235 is an equidigital number, since it uses as much as digits as its factorization.

172064235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713 (or 699 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 172064235 is about 13117.3257564185. The cubic root of 172064235 is about 556.1989986484.

The spelling of 172064235 in words is "one hundred seventy-two million, sixty-four thousand, two hundred thirty-five".