45916621 has 2 divisors, whose sum is σ = 45916622. Its totient is φ = 45916620.

The previous prime is 45916601. The next prime is 45916627. The reversal of 45916621 is 12661954.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36735721 + 9180900 = 6061^2 + 3030^2 .

It is a cyclic number.

It is not a de Polignac number, because 45916621 - 2⁹ = 45916109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45916627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22958310 + 22958311.

It is an arithmetic number, because the mean of its divisors is an integer number (22958311).

Almost surely, 2^45916621 is an apocalyptic number.

It is an amenable number.

45916621 is a deficient number, since it is larger than the sum of its proper divisors (1).

45916621 is an equidigital number, since it uses as much as digits as its factorization.

45916621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 34.

The square root of 45916621 is about 6776.1804137729. The cubic root of 45916621 is about 358.0881699752.

The spelling of 45916621 in words is "forty-five million, nine hundred sixteen thousand, six hundred twenty-one".