172115464 has 16 divisors (see below), whose sum is σ = 333845100. Its totient is φ = 83090112.

The previous prime is 172115423. The next prime is 172115477. The reversal of 172115464 is 464511271.

It can be written as a sum of positive squares in 2 ways, for example, as 166152100 + 5963364 = 12890^2 + 2442^2 .

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, 370707 + ... + 371170.

Almost surely, 2^172115464 is an apocalyptic number.

It is an amenable number.

172115464 is a deficient number, since it is larger than the sum of its proper divisors (161729636).

172115464 is a wasteful number, since it uses less digits than its factorization.

172115464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741912 (or 741908 counting only the distinct ones).

The product of its digits is 6720, while the sum is 31.

The square root of 172115464 is about 13119.2783338109. The cubic root of 172115464 is about 556.2541925535.

The spelling of 172115464 in words is "one hundred seventy-two million, one hundred fifteen thousand, four hundred sixty-four".