172449164 has 6 divisors (see below), whose sum is σ = 301786044. Its totient is φ = 86224580.

The previous prime is 172449143. The next prime is 172449209. The reversal of 172449164 is 461944271.

172449164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21556142 + ... + 21556149.

It is an arithmetic number, because the mean of its divisors is an integer number (50297674).

Almost surely, 2^172449164 is an apocalyptic number.

It is an amenable number.

172449164 is a deficient number, since it is larger than the sum of its proper divisors (129336880).

172449164 is a wasteful number, since it uses less digits than its factorization.

172449164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43112295 (or 43112293 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 172449164 is about 13131.9901005141. The cubic root of 172449164 is about 556.6134517519.

The spelling of 172449164 in words is "one hundred seventy-two million, four hundred forty-nine thousand, one hundred sixty-four".