164513057 has 4 divisors (see below), whose sum is σ = 164923716. Its totient is φ = 164102400.

The previous prime is 164513053. The next prime is 164513059. The reversal of 164513057 is 750315461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 162205696 + 2307361 = 12736^2 + 1519^2 .

It is a cyclic number.

It is not a de Polignac number, because 164513057 - 2² = 164513053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164513053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204728 + ... + 205529.

It is an arithmetic number, because the mean of its divisors is an integer number (41230929).

Almost surely, 2^164513057 is an apocalyptic number.

It is an amenable number.

164513057 is a deficient number, since it is larger than the sum of its proper divisors (410659).

164513057 is an equidigital number, since it uses as much as digits as its factorization.

164513057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410658.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 164513057 is about 12826.2643431359. The cubic root of 164513057 is about 547.9405704373.

The spelling of 164513057 in words is "one hundred sixty-four million, five hundred thirteen thousand, fifty-seven".