165364057 has 2 divisors, whose sum is σ = 165364058. Its totient is φ = 165364056.

The previous prime is 165364039. The next prime is 165364091. The reversal of 165364057 is 750463561.

165364057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153660816 + 11703241 = 12396^2 + 3421^2 .

It is an emirp because it is prime and its reverse (750463561) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165364057 is a prime.

It is not a weakly prime, because it can be changed into another prime (165364007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82682028 + 82682029.

It is an arithmetic number, because the mean of its divisors is an integer number (82682029).

Almost surely, 2^165364057 is an apocalyptic number.

It is an amenable number.

165364057 is a deficient number, since it is larger than the sum of its proper divisors (1).

165364057 is an equidigital number, since it uses as much as digits as its factorization.

165364057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 165364057 is about 12859.3956700927. The cubic root of 165364057 is about 548.8837492727.

The spelling of 165364057 in words is "one hundred sixty-five million, three hundred sixty-four thousand, fifty-seven".