164069625 has 16 divisors (see below), whose sum is σ = 273012480. Its totient is φ = 87503600.

The previous prime is 164069599. The next prime is 164069629. The reversal of 164069625 is 526960461.

164069625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 164069625 - 2⁷ = 164069497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164069629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218385 + ... + 219134.

It is an arithmetic number, because the mean of its divisors is an integer number (17063280).

Almost surely, 2^164069625 is an apocalyptic number.

164069625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

164069625 is a deficient number, since it is larger than the sum of its proper divisors (108942855).

164069625 is an equidigital number, since it uses as much as digits as its factorization.

164069625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437537 (or 437527 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 164069625 is about 12808.9665859506. The cubic root of 164069625 is about 547.4478172154.

The spelling of 164069625 in words is "one hundred sixty-four million, sixty-nine thousand, six hundred twenty-five".