16113257 has 2 divisors, whose sum is σ = 16113258. Its totient is φ = 16113256.

The previous prime is 16113247. The next prime is 16113259. The reversal of 16113257 is 75231161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10896601 + 5216656 = 3301^2 + 2284^2 .

It is a cyclic number.

It is not a de Polignac number, because 16113257 - 2⁸ = 16113001 is a prime.

It is a super-2 number, since 2×16113257² = 519274102296098, which contains 22 as substring.

Together with 16113259, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16113259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8056628 + 8056629.

It is an arithmetic number, because the mean of its divisors is an integer number (8056629).

Almost surely, 2^16113257 is an apocalyptic number.

It is an amenable number.

16113257 is a deficient number, since it is larger than the sum of its proper divisors (1).

16113257 is an equidigital number, since it uses as much as digits as its factorization.

16113257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1260, while the sum is 26.

The square root of 16113257 is about 4014.1321602558. The cubic root of 16113257 is about 252.5773745817.

The spelling of 16113257 in words is "sixteen million, one hundred thirteen thousand, two hundred fifty-seven".