157243711 has 2 divisors, whose sum is σ = 157243712. Its totient is φ = 157243710.

The previous prime is 157243703. The next prime is 157243781. The reversal of 157243711 is 117342751.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157243711 - 2³ = 157243703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157243781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78621855 + 78621856.

It is an arithmetic number, because the mean of its divisors is an integer number (78621856).

Almost surely, 2^157243711 is an apocalyptic number.

157243711 is a deficient number, since it is larger than the sum of its proper divisors (1).

157243711 is an equidigital number, since it uses as much as digits as its factorization.

157243711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5880, while the sum is 31.

The square root of 157243711 is about 12539.6854426257. The cubic root of 157243711 is about 539.7480660648.

The spelling of 157243711 in words is "one hundred fifty-seven million, two hundred forty-three thousand, seven hundred eleven".