45791999 has 8 divisors (see below), whose sum is σ = 52893648. Its totient is φ = 39180160.

The previous prime is 45791989. The next prime is 45792001. The reversal of 45791999 is 99919754.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45791999 - 2⁴ = 45791983 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45791999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45791939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122252 + ... + 122625.

It is an arithmetic number, because the mean of its divisors is an integer number (6611706).

Almost surely, 2^45791999 is an apocalyptic number.

45791999 is a deficient number, since it is larger than the sum of its proper divisors (7101649).

45791999 is a wasteful number, since it uses less digits than its factorization.

45791999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244905.

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

The square root of 45791999 is about 6766.9785724502. The cubic root of 45791999 is about 357.7639148604.

The spelling of 45791999 in words is "forty-five million, seven hundred ninety-one thousand, nine hundred ninety-nine".