157085911 has 2 divisors, whose sum is σ = 157085912. Its totient is φ = 157085910.

The previous prime is 157085893. The next prime is 157085917. The reversal of 157085911 is 119580751.

It is a strong prime.

It is an emirp because it is prime and its reverse (119580751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157085911 - 2⁹ = 157085399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157085917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78542955 + 78542956.

It is an arithmetic number, because the mean of its divisors is an integer number (78542956).

Almost surely, 2^157085911 is an apocalyptic number.

157085911 is a deficient number, since it is larger than the sum of its proper divisors (1).

157085911 is an equidigital number, since it uses as much as digits as its factorization.

157085911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 37.

The square root of 157085911 is about 12533.3918394025. The cubic root of 157085911 is about 539.5674531140.

The spelling of 157085911 in words is "one hundred fifty-seven million, eighty-five thousand, nine hundred eleven".