172964534 has 4 divisors (see below), whose sum is σ = 259446804. Its totient is φ = 86482266.

The previous prime is 172964503. The next prime is 172964549. The reversal of 172964534 is 435469271.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 172964491 and 172964500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43241132 + ... + 43241135.

It is an arithmetic number, because the mean of its divisors is an integer number (64861701).

Almost surely, 2^172964534 is an apocalyptic number.

172964534 is a deficient number, since it is larger than the sum of its proper divisors (86482270).

172964534 is an equidigital number, since it uses as much as digits as its factorization.

172964534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86482269.

The product of its digits is 181440, while the sum is 41.

The square root of 172964534 is about 13151.5981538367. The cubic root of 172964534 is about 557.1673861716.

The spelling of 172964534 in words is "one hundred seventy-two million, nine hundred sixty-four thousand, five hundred thirty-four".