164525939 has 12 divisors (see below), whose sum is σ = 172329696. Its totient is φ = 156959712.

The previous prime is 164525891. The next prime is 164525951. The reversal of 164525939 is 939525461.

It is not a de Polignac number, because 164525939 - 2¹⁶ = 164460403 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164525939.

It is not an unprimeable number, because it can be changed into a prime (164525839) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103142 + ... + 104724.

It is an arithmetic number, because the mean of its divisors is an integer number (14360808).

Almost surely, 2^164525939 is an apocalyptic number.

164525939 is a deficient number, since it is larger than the sum of its proper divisors (7803757).

164525939 is an equidigital number, since it uses as much as digits as its factorization.

164525939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1726 (or 1673 counting only the distinct ones).

The product of its digits is 291600, while the sum is 44.

The square root of 164525939 is about 12826.7665060217. The cubic root of 164525939 is about 547.9548720097.

The spelling of 164525939 in words is "one hundred sixty-four million, five hundred twenty-five thousand, nine hundred thirty-nine".