157915385 has 16 divisors (see below), whose sum is σ = 193596480. Its totient is φ = 123629760.

The previous prime is 157915369. The next prime is 157915399. The reversal of 157915385 is 583519751.

It is a happy number.

It is not a de Polignac number, because 157915385 - 2⁴ = 157915369 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43490 + ... + 46980.

It is an arithmetic number, because the mean of its divisors is an integer number (12099780).

Almost surely, 2^157915385 is an apocalyptic number.

It is an amenable number.

157915385 is a deficient number, since it is larger than the sum of its proper divisors (35681095).

157915385 is a wasteful number, since it uses less digits than its factorization.

157915385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3688.

The product of its digits is 189000, while the sum is 44.

The square root of 157915385 is about 12566.4388352468. The cubic root of 157915385 is about 540.5154942540.

The spelling of 157915385 in words is "one hundred fifty-seven million, nine hundred fifteen thousand, three hundred eighty-five".