157139404 has 12 divisors (see below), whose sum is σ = 286950384. Its totient is φ = 75153584.

The previous prime is 157139387. The next prime is 157139413. The reversal of 157139404 is 404931751.

157139404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 157139404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 853927 + ... + 854110.

It is an arithmetic number, because the mean of its divisors is an integer number (23912532).

Almost surely, 2^157139404 is an apocalyptic number.

It is an amenable number.

157139404 is a deficient number, since it is larger than the sum of its proper divisors (129810980).

157139404 is a wasteful number, since it uses less digits than its factorization.

157139404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708064 (or 1708062 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 157139404 is about 12535.5256770508. The cubic root of 157139404 is about 539.6286930769.

The spelling of 157139404 in words is "one hundred fifty-seven million, one hundred thirty-nine thousand, four hundred four".