16157243 has 2 divisors, whose sum is σ = 16157244. Its totient is φ = 16157242.

The previous prime is 16157233. The next prime is 16157269. The reversal of 16157243 is 34275161.

It is a weak prime.

It is an emirp because it is prime and its reverse (34275161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16157243 - 2⁴ = 16157227 is a prime.

It is a super-2 number, since 2×16157243² = 522113002722098, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (16157213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8078621 + 8078622.

It is an arithmetic number, because the mean of its divisors is an integer number (8078622).

Almost surely, 2^16157243 is an apocalyptic number.

16157243 is a deficient number, since it is larger than the sum of its proper divisors (1).

16157243 is an equidigital number, since it uses as much as digits as its factorization.

16157243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 29.

The square root of 16157243 is about 4019.6073191296. The cubic root of 16157243 is about 252.8069945038.

The spelling of 16157243 in words is "sixteen million, one hundred fifty-seven thousand, two hundred forty-three".