45515791 has 2 divisors, whose sum is σ = 45515792. Its totient is φ = 45515790.

The previous prime is 45515777. The next prime is 45515807. The reversal of 45515791 is 19751554.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45515791 - 2⁵ = 45515759 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45515791.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45515731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22757895 + 22757896.

It is an arithmetic number, because the mean of its divisors is an integer number (22757896).

Almost surely, 2^45515791 is an apocalyptic number.

45515791 is a deficient number, since it is larger than the sum of its proper divisors (1).

45515791 is an equidigital number, since it uses as much as digits as its factorization.

45515791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31500, while the sum is 37.

The square root of 45515791 is about 6746.5391868720. The cubic root of 45515791 is about 357.0431440716.

The spelling of 45515791 in words is "forty-five million, five hundred fifteen thousand, seven hundred ninety-one".