45799991 has 2 divisors, whose sum is σ = 45799992. Its totient is φ = 45799990.

The previous prime is 45799987. The next prime is 45800009. The reversal of 45799991 is 19999754.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45799991 - 2² = 45799987 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 (45799951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22899995 + 22899996.

It is an arithmetic number, because the mean of its divisors is an integer number (22899996).

Almost surely, 2^45799991 is an apocalyptic number.

45799991 is a deficient number, since it is larger than the sum of its proper divisors (1).

45799991 is an equidigital number, since it uses as much as digits as its factorization.

45799991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 918540, while the sum is 53.

The square root of 45799991 is about 6767.5690613395. The cubic root of 45799991 is about 357.7847269596.

The spelling of 45799991 in words is "forty-five million, seven hundred ninety-nine thousand, nine hundred ninety-one".