172135952 has 20 divisors (see below), whose sum is σ = 333936960. Its totient is φ = 85958688.

The previous prime is 172135939. The next prime is 172135993. The reversal of 172135952 is 259531271.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7013 + ... + 19835.

It is an arithmetic number, because the mean of its divisors is an integer number (16696848).

Almost surely, 2^172135952 is an apocalyptic number.

It is an amenable number.

172135952 is a deficient number, since it is larger than the sum of its proper divisors (161801008).

172135952 is a wasteful number, since it uses less digits than its factorization.

172135952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13670 (or 13664 counting only the distinct ones).

The product of its digits is 18900, while the sum is 35.

The square root of 172135952 is about 13120.0591462081. The cubic root of 172135952 is about 556.2762631710.

It can be divided in two parts, 1721 and 35952, that added together give a palindrome (37673).

The spelling of 172135952 in words is "one hundred seventy-two million, one hundred thirty-five thousand, nine hundred fifty-two".