45531613 has 2 divisors, whose sum is σ = 45531614. Its totient is φ = 45531612.

The previous prime is 45531601. The next prime is 45531617. The reversal of 45531613 is 31613554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45522009 + 9604 = 6747^2 + 98^2 .

It is a cyclic number.

It is not a de Polignac number, because 45531613 - 2¹³ = 45523421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45531617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22765806 + 22765807.

It is an arithmetic number, because the mean of its divisors is an integer number (22765807).

Almost surely, 2^45531613 is an apocalyptic number.

It is an amenable number.

45531613 is a deficient number, since it is larger than the sum of its proper divisors (1).

45531613 is an equidigital number, since it uses as much as digits as its factorization.

45531613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 28.

The square root of 45531613 is about 6747.7116861941. The cubic root of 45531613 is about 357.0845105370.

The spelling of 45531613 in words is "forty-five million, five hundred thirty-one thousand, six hundred thirteen".