157979377 has 4 divisors (see below), whose sum is σ = 161653360. Its totient is φ = 154305396.

The previous prime is 157979369. The next prime is 157979383. The reversal of 157979377 is 773979751.

157979377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 773979751 = 239 ⋅3238409.

It is a cyclic number.

It is not a de Polignac number, because 157979377 - 2³ = 157979369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157979077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1836927 + ... + 1837012.

It is an arithmetic number, because the mean of its divisors is an integer number (40413340).

Almost surely, 2^157979377 is an apocalyptic number.

It is an amenable number.

157979377 is a deficient number, since it is larger than the sum of its proper divisors (3673983).

157979377 is an equidigital number, since it uses as much as digits as its factorization.

157979377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3673982.

The product of its digits is 2917215, while the sum is 55.

The square root of 157979377 is about 12568.9847243125. The cubic root of 157979377 is about 540.5884953667.

The spelling of 157979377 in words is "one hundred fifty-seven million, nine hundred seventy-nine thousand, three hundred seventy-seven".