157138311 has 16 divisors (see below), whose sum is σ = 231137280. Its totient is φ = 94163520.

The previous prime is 157138309. The next prime is 157138313. The reversal of 157138311 is 113831751.

It is an interprime number because it is at equal distance from previous prime (157138309) and next prime (157138313).

It is not a de Polignac number, because 157138311 - 2¹ = 157138309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157138313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23815 + ... + 29688.

It is an arithmetic number, because the mean of its divisors is an integer number (14446080).

Almost surely, 2^157138311 is an apocalyptic number.

157138311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

157138311 is a deficient number, since it is larger than the sum of its proper divisors (73998969).

157138311 is a wasteful number, since it uses less digits than its factorization.

157138311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53606.

The product of its digits is 2520, while the sum is 30.

The square root of 157138311 is about 12535.4820808775. The cubic root of 157138311 is about 539.6274419256.

The spelling of 157138311 in words is "one hundred fifty-seven million, one hundred thirty-eight thousand, three hundred eleven".