977162123 has 4 divisors (see below), whose sum is σ = 1116756720. Its totient is φ = 837567528.

The previous prime is 977162099. The next prime is 977162141. The reversal of 977162123 is 321261779.

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

It is a de Polignac number, because none of the positive numbers 2^k-977162123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (977162423) 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, 69797288 + ... + 69797301.

It is an arithmetic number, because the mean of its divisors is an integer number (279189180).

Almost surely, 2^977162123 is an apocalyptic number.

977162123 is a deficient number, since it is larger than the sum of its proper divisors (139594597).

977162123 is a wasteful number, since it uses less digits than its factorization.

977162123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139594596.

The product of its digits is 31752, while the sum is 38.

The square root of 977162123 is about 31259.5924957444. The cubic root of 977162123 is about 992.3286755991.

The spelling of 977162123 in words is "nine hundred seventy-seven million, one hundred sixty-two thousand, one hundred twenty-three".