172455464 has 8 divisors (see below), whose sum is σ = 323354010. Its totient is φ = 86227728.

The previous prime is 172455433. The next prime is 172455473. The reversal of 172455464 is 464554271.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 172396900 + 58564 = 13130^2 + 242^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10778459 + ... + 10778474.

Almost surely, 2^172455464 is an apocalyptic number.

It is an amenable number.

172455464 is a deficient number, since it is larger than the sum of its proper divisors (150898546).

172455464 is a wasteful number, since it uses less digits than its factorization.

172455464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21556939 (or 21556935 counting only the distinct ones).

The product of its digits is 134400, while the sum is 38.

The square root of 172455464 is about 13132.2299705724. The cubic root of 172455464 is about 556.6202298306.

The spelling of 172455464 in words is "one hundred seventy-two million, four hundred fifty-five thousand, four hundred sixty-four".