164305172 has 24 divisors (see below), whose sum is σ = 292922784. Its totient is φ = 80622432.

The previous prime is 164305171. The next prime is 164305181. The reversal of 164305172 is 271503461.

164305172 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164305171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81278 + ... + 83274.

It is an arithmetic number, because the mean of its divisors is an integer number (12205116).

Almost surely, 2^164305172 is an apocalyptic number.

It is an amenable number.

164305172 is a deficient number, since it is larger than the sum of its proper divisors (128617612).

164305172 is a wasteful number, since it uses less digits than its factorization.

164305172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2375 (or 2373 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 164305172 is about 12818.1579019764. The cubic root of 164305172 is about 547.7096735893.

The spelling of 164305172 in words is "one hundred sixty-four million, three hundred five thousand, one hundred seventy-two".