45312961 has 2 divisors, whose sum is σ = 45312962. Its totient is φ = 45312960.

The previous prime is 45312947. The next prime is 45312977. The reversal of 45312961 is 16921354.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44622400 + 690561 = 6680^2 + 831^2 .

It is a cyclic number.

It is not a de Polignac number, because 45312961 - 2⁷ = 45312833 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45312991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22656480 + 22656481.

It is an arithmetic number, because the mean of its divisors is an integer number (22656481).

Almost surely, 2^45312961 is an apocalyptic number.

It is an amenable number.

45312961 is a deficient number, since it is larger than the sum of its proper divisors (1).

45312961 is an equidigital number, since it uses as much as digits as its factorization.

45312961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 31.

The square root of 45312961 is about 6731.4902510514. The cubic root of 45312961 is about 356.5119958038.

The spelling of 45312961 in words is "forty-five million, three hundred twelve thousand, nine hundred sixty-one".