45666961 has 2 divisors, whose sum is σ = 45666962. Its totient is φ = 45666960.

The previous prime is 45666949. The next prime is 45666997. The reversal of 45666961 is 16966654.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32706961 + 12960000 = 5719^2 + 3600^2 .

It is a cyclic number.

It is not a de Polignac number, because 45666961 - 2⁹ = 45666449 is a prime.

It is not a weakly prime, because it can be changed into another prime (45666161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22833480 + 22833481.

It is an arithmetic number, because the mean of its divisors is an integer number (22833481).

Almost surely, 2^45666961 is an apocalyptic number.

It is an amenable number.

45666961 is a deficient number, since it is larger than the sum of its proper divisors (1).

45666961 is an equidigital number, since it uses as much as digits as its factorization.

45666961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 43.

The square root of 45666961 is about 6757.7334217917. The cubic root of 45666961 is about 357.4379855592.

The spelling of 45666961 in words is "forty-five million, six hundred sixty-six thousand, nine hundred sixty-one".