157813418 has 24 divisors (see below), whose sum is σ = 284868900. Its totient is φ = 65300928.

The previous prime is 157813391. The next prime is 157813421. The reversal of 157813418 is 814318751.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 140114569 + 17698849 = 11837^2 + 4207^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24923 + ... + 30606.

Almost surely, 2^157813418 is an apocalyptic number.

157813418 is a deficient number, since it is larger than the sum of its proper divisors (127055482).

157813418 is a wasteful number, since it uses less digits than its factorization.

157813418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55574 (or 55567 counting only the distinct ones).

The product of its digits is 26880, while the sum is 38.

The square root of 157813418 is about 12562.3810641136. The cubic root of 157813418 is about 540.3991310715.

The spelling of 157813418 in words is "one hundred fifty-seven million, eight hundred thirteen thousand, four hundred eighteen".