157204615 has 16 divisors (see below), whose sum is σ = 193052160. Its totient is φ = 122853280.

The previous prime is 157204513. The next prime is 157204631. The reversal of 157204615 is 516402751.

It is not a de Polignac number, because 157204615 - 2¹³ = 157196423 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 47670 + ... + 50860.

It is an arithmetic number, because the mean of its divisors is an integer number (12065760).

Almost surely, 2^157204615 is an apocalyptic number.

157204615 is a deficient number, since it is larger than the sum of its proper divisors (35847545).

157204615 is a wasteful number, since it uses less digits than its factorization.

157204615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3422.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 157204615 is about 12538.1264549374. The cubic root of 157204615 is about 539.7033292686.

The spelling of 157204615 in words is "one hundred fifty-seven million, two hundred four thousand, six hundred fifteen".