45742621 has 2 divisors, whose sum is σ = 45742622. Its totient is φ = 45742620.

The previous prime is 45742601. The next prime is 45742637. The reversal of 45742621 is 12624754.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29822521 + 15920100 = 5461^2 + 3990^2 .

It is a cyclic number.

It is not a de Polignac number, because 45742621 - 2⁵ = 45742589 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45742601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22871310 + 22871311.

It is an arithmetic number, because the mean of its divisors is an integer number (22871311).

Almost surely, 2^45742621 is an apocalyptic number.

It is an amenable number.

45742621 is a deficient number, since it is larger than the sum of its proper divisors (1).

45742621 is an equidigital number, since it uses as much as digits as its factorization.

45742621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 31.

The square root of 45742621 is about 6763.3291358620. The cubic root of 45742621 is about 357.6352750654.

The spelling of 45742621 in words is "forty-five million, seven hundred forty-two thousand, six hundred twenty-one".