157297379 has 8 divisors (see below), whose sum is σ = 171923328. Its totient is φ = 143268480.

The previous prime is 157297331. The next prime is 157297403. The reversal of 157297379 is 973792751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157297379 - 2²⁰ = 156248803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157297319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148712 + ... + 149765.

It is an arithmetic number, because the mean of its divisors is an integer number (21490416).

Almost surely, 2^157297379 is an apocalyptic number.

157297379 is a deficient number, since it is larger than the sum of its proper divisors (14625949).

157297379 is a wasteful number, since it uses less digits than its factorization.

157297379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298525.

The product of its digits is 833490, while the sum is 50.

The square root of 157297379 is about 12541.8251861521. The cubic root of 157297379 is about 539.8094652438.

The spelling of 157297379 in words is "one hundred fifty-seven million, two hundred ninety-seven thousand, three hundred seventy-nine".