45015599 has 4 divisors (see below), whose sum is σ = 45461400. Its totient is φ = 44569800.

The previous prime is 45015589. The next prime is 45015611. The reversal of 45015599 is 99551054.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45015599 - 2²⁰ = 43967023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45015559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222749 + ... + 222950.

It is an arithmetic number, because the mean of its divisors is an integer number (11365350).

Almost surely, 2^45015599 is an apocalyptic number.

45015599 is a deficient number, since it is larger than the sum of its proper divisors (445801).

45015599 is a wasteful number, since it uses less digits than its factorization.

45015599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445800.

The product of its (nonzero) digits is 40500, while the sum is 38.

The square root of 45015599 is about 6709.3665125703. The cubic root of 45015599 is about 355.7304249444.

The spelling of 45015599 in words is "forty-five million, fifteen thousand, five hundred ninety-nine".