157261538 has 32 divisors (see below), whose sum is σ = 276732288. Its totient is φ = 65635200.

The previous prime is 157261501. The next prime is 157261549. The reversal of 157261538 is 835162751.

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 15 ways as a sum of consecutive naturals, for example, 90518 + ... + 92238.

It is an arithmetic number, because the mean of its divisors is an integer number (8647884).

Almost surely, 2^157261538 is an apocalyptic number.

157261538 is a deficient number, since it is larger than the sum of its proper divisors (119470750).

157261538 is a wasteful number, since it uses less digits than its factorization.

157261538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1898.

The product of its digits is 50400, while the sum is 38.

The square root of 157261538 is about 12540.3962457332. The cubic root of 157261538 is about 539.7684626943.

The spelling of 157261538 in words is "one hundred fifty-seven million, two hundred sixty-one thousand, five hundred thirty-eight".