45017591 has 2 divisors, whose sum is σ = 45017592. Its totient is φ = 45017590.

The previous prime is 45017579. The next prime is 45017629. The reversal of 45017591 is 19571054.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45017591 - 2⁶ = 45017527 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 (45017521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22508795 + 22508796.

It is an arithmetic number, because the mean of its divisors is an integer number (22508796).

Almost surely, 2^45017591 is an apocalyptic number.

45017591 is a deficient number, since it is larger than the sum of its proper divisors (1).

45017591 is an equidigital number, since it uses as much as digits as its factorization.

45017591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 45017591 is about 6709.5149601145. The cubic root of 45017591 is about 355.7356720482.

The spelling of 45017591 in words is "forty-five million, seventeen thousand, five hundred ninety-one".