160977913 has 6 divisors (see below), whose sum is σ = 171004526. Its totient is φ = 151508352.

The previous prime is 160977911. The next prime is 160977917. The reversal of 160977913 is 319779061.

It can be written as a sum of positive squares in 3 ways, for example, as 114233344 + 46744569 = 10688^2 + 6837^2 .

It is not a de Polignac number, because 160977913 - 2¹ = 160977911 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 160977913.

It is not an unprimeable number, because it can be changed into a prime (160977911) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 278220 + ... + 278797.

Almost surely, 2^160977913 is an apocalyptic number.

It is an amenable number.

160977913 is a deficient number, since it is larger than the sum of its proper divisors (10026613).

160977913 is an equidigital number, since it uses as much as digits as its factorization.

160977913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557051 (or 557034 counting only the distinct ones).

The product of its (nonzero) digits is 71442, while the sum is 43.

The square root of 160977913 is about 12687.7071608703. The cubic root of 160977913 is about 543.9873043912.

The spelling of 160977913 in words is "one hundred sixty million, nine hundred seventy-seven thousand, nine hundred thirteen".