157112591 has 2 divisors, whose sum is σ = 157112592. Its totient is φ = 157112590.

The previous prime is 157112573. The next prime is 157112621. The reversal of 157112591 is 195211751.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157112591 - 2¹⁴ = 157096207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157112561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78556295 + 78556296.

It is an arithmetic number, because the mean of its divisors is an integer number (78556296).

Almost surely, 2^157112591 is an apocalyptic number.

157112591 is a deficient number, since it is larger than the sum of its proper divisors (1).

157112591 is an equidigital number, since it uses as much as digits as its factorization.

157112591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3150, while the sum is 32.

The square root of 157112591 is about 12534.4561509465. The cubic root of 157112591 is about 539.5979987023.

The spelling of 157112591 in words is "one hundred fifty-seven million, one hundred twelve thousand, five hundred ninety-one".