45791515 has 32 divisors (see below), whose sum is σ = 69382656. Its totient is φ = 28181760.

The previous prime is 45791509. The next prime is 45791519. The reversal of 45791515 is 51519754.

It is not a de Polignac number, because 45791515 - 2³ = 45791507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45791519) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31239 + ... + 32671.

It is an arithmetic number, because the mean of its divisors is an integer number (2168208).

Almost surely, 2^45791515 is an apocalyptic number.

45791515 is a deficient number, since it is larger than the sum of its proper divisors (23591141).

45791515 is a wasteful number, since it uses less digits than its factorization.

45791515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539.

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

The square root of 45791515 is about 6766.9428104573. The cubic root of 45791515 is about 357.7626543902.

The spelling of 45791515 in words is "forty-five million, seven hundred ninety-one thousand, five hundred fifteen".