157118311 has 4 divisors (see below), whose sum is σ = 179563792. Its totient is φ = 134672832.

The previous prime is 157118293. The next prime is 157118329. The reversal of 157118311 is 113811751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113811751 = 23 ⋅4948337.

It is an interprime number because it is at equal distance from previous prime (157118293) and next prime (157118329).

It is not a de Polignac number, because 157118311 - 2⁵ = 157118279 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157118311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157113311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11222730 + ... + 11222743.

It is an arithmetic number, because the mean of its divisors is an integer number (44890948).

Almost surely, 2^157118311 is an apocalyptic number.

157118311 is a deficient number, since it is larger than the sum of its proper divisors (22445481).

157118311 is an equidigital number, since it uses as much as digits as its factorization.

157118311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22445480.

The product of its digits is 840, while the sum is 28.

The square root of 157118311 is about 12534.6843199181. The cubic root of 157118311 is about 539.6045470065.

The spelling of 157118311 in words is "one hundred fifty-seven million, one hundred eighteen thousand, three hundred eleven".