157816379 has 4 divisors (see below), whose sum is σ = 180361584. Its totient is φ = 135271176.

The previous prime is 157816367. The next prime is 157816391. The reversal of 157816379 is 973618751.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (157816367) and next prime (157816391).

It is a cyclic number.

It is not a de Polignac number, because 157816379 - 2¹² = 157812283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157816349) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11272592 + ... + 11272605.

It is an arithmetic number, because the mean of its divisors is an integer number (45090396).

Almost surely, 2^157816379 is an apocalyptic number.

157816379 is a deficient number, since it is larger than the sum of its proper divisors (22545205).

157816379 is an equidigital number, since it uses as much as digits as its factorization.

157816379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22545204.

The product of its digits is 317520, while the sum is 47.

The square root of 157816379 is about 12562.4989154228. The cubic root of 157816379 is about 540.4025108260.

The spelling of 157816379 in words is "one hundred fifty-seven million, eight hundred sixteen thousand, three hundred seventy-nine".