157385019 has 32 divisors (see below), whose sum is σ = 237323520. Its totient is φ = 91942400.

The previous prime is 157385017. The next prime is 157385023. The reversal of 157385019 is 910583751.

It is not a de Polignac number, because 157385019 - 2¹ = 157385017 is a prime.

It is a super-2 number, since 2×157385019² = 49540088411260722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (157385017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119764 + ... + 121070.

It is an arithmetic number, because the mean of its divisors is an integer number (7416360).

Almost surely, 2^157385019 is an apocalyptic number.

157385019 is a deficient number, since it is larger than the sum of its proper divisors (79938501).

157385019 is a wasteful number, since it uses less digits than its factorization.

157385019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451.

The product of its (nonzero) digits is 37800, while the sum is 39.

The square root of 157385019 is about 12545.3186089473. The cubic root of 157385019 is about 539.9097002643.

The spelling of 157385019 in words is "one hundred fifty-seven million, three hundred eighty-five thousand, nineteen".