27157111 has 2 divisors, whose sum is σ = 27157112. Its totient is φ = 27157110.

The previous prime is 27157093. The next prime is 27157121. The reversal of 27157111 is 11175172.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27157111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27157121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13578555 + 13578556.

It is an arithmetic number, because the mean of its divisors is an integer number (13578556).

Almost surely, 2^27157111 is an apocalyptic number.

27157111 is a deficient number, since it is larger than the sum of its proper divisors (1).

27157111 is an equidigital number, since it uses as much as digits as its factorization.

27157111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 490, while the sum is 25.

The square root of 27157111 is about 5211.2485068360. The cubic root of 27157111 is about 300.5807675639.

The spelling of 27157111 in words is "twenty-seven million, one hundred fifty-seven thousand, one hundred eleven".