45368621 has 2 divisors, whose sum is σ = 45368622. Its totient is φ = 45368620.

The previous prime is 45368573. The next prime is 45368633. The reversal of 45368621 is 12686354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40576900 + 4791721 = 6370^2 + 2189^2 .

It is a cyclic number.

It is not a de Polignac number, because 45368621 - 2²² = 41174317 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45368641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22684310 + 22684311.

It is an arithmetic number, because the mean of its divisors is an integer number (22684311).

Almost surely, 2^45368621 is an apocalyptic number.

It is an amenable number.

45368621 is a deficient number, since it is larger than the sum of its proper divisors (1).

45368621 is an equidigital number, since it uses as much as digits as its factorization.

45368621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 35.

The square root of 45368621 is about 6735.6232822212. The cubic root of 45368621 is about 356.6579094520.

The spelling of 45368621 in words is "forty-five million, three hundred sixty-eight thousand, six hundred twenty-one".