16156057 has 2 divisors, whose sum is σ = 16156058. Its totient is φ = 16156056.

The previous prime is 16156039. The next prime is 16156079. The reversal of 16156057 is 75065161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8433216 + 7722841 = 2904^2 + 2779^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16156057 is a prime.

It is a super-2 number, since 2×16156057² = 522036355574498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16156027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8078028 + 8078029.

It is an arithmetic number, because the mean of its divisors is an integer number (8078029).

Almost surely, 2^16156057 is an apocalyptic number.

It is an amenable number.

16156057 is a deficient number, since it is larger than the sum of its proper divisors (1).

16156057 is an equidigital number, since it uses as much as digits as its factorization.

16156057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 16156057 is about 4019.4597895737. The cubic root of 16156057 is about 252.8008087036.

The spelling of 16156057 in words is "sixteen million, one hundred fifty-six thousand, fifty-seven".