974966161 has 4 divisors (see below), whose sum is σ = 1049963572. Its totient is φ = 899968752.

The previous prime is 974966149. The next prime is 974966177. The reversal of 974966161 is 161669479.

974966161 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 an emirpimes, since its reverse is a distinct semiprime: 161669479 = 89 ⋅1816511.

It can be written as a sum of positive squares in 2 ways, for example, as 187827025 + 787139136 = 13705^2 + 28056^2 .

It is a cyclic number.

It is not a de Polignac number, because 974966161 - 2⁵ = 974966129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (974966141) 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, 37498686 + ... + 37498711.

It is an arithmetic number, because the mean of its divisors is an integer number (262490893).

Almost surely, 2^974966161 is an apocalyptic number.

It is an amenable number.

974966161 is a deficient number, since it is larger than the sum of its proper divisors (74997411).

974966161 is a wasteful number, since it uses less digits than its factorization.

974966161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74997410.

The product of its digits is 489888, while the sum is 49.

The square root of 974966161 is about 31224.4481296307. The cubic root of 974966161 is about 991.5847695409.

The spelling of 974966161 in words is "nine hundred seventy-four million, nine hundred sixty-six thousand, one hundred sixty-one".