27157243 has 2 divisors, whose sum is σ = 27157244. Its totient is φ = 27157242.

The previous prime is 27157219. The next prime is 27157259. The reversal of 27157243 is 34275172.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27157243 - 2¹⁷ = 27026171 is a prime.

It is a super-2 number, since 2×27157243² = 1475031694722098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27152243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13578621 + 13578622.

It is an arithmetic number, because the mean of its divisors is an integer number (13578622).

Almost surely, 2^27157243 is an apocalyptic number.

27157243 is a deficient number, since it is larger than the sum of its proper divisors (1).

27157243 is an equidigital number, since it uses as much as digits as its factorization.

27157243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11760, while the sum is 31.

The square root of 27157243 is about 5211.2611717318. The cubic root of 27157243 is about 300.5812545646.

The spelling of 27157243 in words is "twenty-seven million, one hundred fifty-seven thousand, two hundred forty-three".