157474494 has 12 divisors (see below), whose sum is σ = 341194776. Its totient is φ = 52491492.

The previous prime is 157474469. The next prime is 157474517. The reversal of 157474494 is 494474751.

157474494 is a `hidden beast` number, since 1 + 574 + 74 + 4 + 9 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 4374274 + ... + 4374309.

It is an arithmetic number, because the mean of its divisors is an integer number (28432898).

Almost surely, 2^157474494 is an apocalyptic number.

157474494 is an abundant number, since it is smaller than the sum of its proper divisors (183720282).

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

157474494 is a wasteful number, since it uses less digits than its factorization.

157474494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8748591 (or 8748588 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 157474494 is about 12548.8841735032. The cubic root of 157474494 is about 540.0119956183.

The spelling of 157474494 in words is "one hundred fifty-seven million, four hundred seventy-four thousand, four hundred ninety-four".