164479925 has 12 divisors (see below), whose sum is σ = 204423300. Its totient is φ = 131281920.

The previous prime is 164479919. The next prime is 164479933. The reversal of 164479925 is 529974461.

It can be written as a sum of positive squares in 6 ways, for example, as 1100401 + 163379524 = 1049^2 + 12782^2 .

It is not a de Polignac number, because 164479925 - 2¹⁶ = 164414389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164479925.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3899 + ... + 18551.

It is an arithmetic number, because the mean of its divisors is an integer number (17035275).

Almost surely, 2^164479925 is an apocalyptic number.

It is an amenable number.

164479925 is a deficient number, since it is larger than the sum of its proper divisors (39943375).

164479925 is a wasteful number, since it uses less digits than its factorization.

164479925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15112 (or 15107 counting only the distinct ones).

The product of its digits is 544320, while the sum is 47.

The square root of 164479925 is about 12824.9727095226. The cubic root of 164479925 is about 547.9037839229.

The spelling of 164479925 in words is "one hundred sixty-four million, four hundred seventy-nine thousand, nine hundred twenty-five".