157431474 has 12 divisors (see below), whose sum is σ = 341101566. Its totient is φ = 52477152.

The previous prime is 157431433. The next prime is 157431479. The reversal of 157431474 is 474134751.

157431474 is a `hidden beast` number, since 1 + 574 + 3 + 14 + 74 = 666.

It can be written as a sum of positive squares in only one way, i.e., 156125025 + 1306449 = 12495^2 + 1143^2 .

It is not an unprimeable number, because it can be changed into a prime (157431479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4373079 + ... + 4373114.

Almost surely, 2^157431474 is an apocalyptic number.

157431474 is an abundant number, since it is smaller than the sum of its proper divisors (183670092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157431474 is a wasteful number, since it uses less digits than its factorization.

157431474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8746201 (or 8746198 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 157431474 is about 12547.1699597957. The cubic root of 157431474 is about 539.9628163697.

The spelling of 157431474 in words is "one hundred fifty-seven million, four hundred thirty-one thousand, four hundred seventy-four".