45815147 has 6 divisors (see below), whose sum is σ = 53295228. Its totient is φ = 39270084.

The previous prime is 45815131. The next prime is 45815171. The reversal of 45815147 is 74151854.

It is not a de Polignac number, because 45815147 - 2⁴ = 45815131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45815947) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 467453 + ... + 467550.

It is an arithmetic number, because the mean of its divisors is an integer number (8882538).

Almost surely, 2^45815147 is an apocalyptic number.

45815147 is a deficient number, since it is larger than the sum of its proper divisors (7480081).

45815147 is an equidigital number, since it uses as much as digits as its factorization.

45815147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935017 (or 935010 counting only the distinct ones).

The product of its digits is 22400, while the sum is 35.

The square root of 45815147 is about 6768.6887208676. The cubic root of 45815147 is about 357.8241883013.

The spelling of 45815147 in words is "forty-five million, eight hundred fifteen thousand, one hundred forty-seven".