45715809 has 16 divisors (see below), whose sum is σ = 62117888. Its totient is φ = 29901312.

The previous prime is 45715801. The next prime is 45715823. The reversal of 45715809 is 90851754.

It is not a de Polignac number, because 45715809 - 2³ = 45715801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45715801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36339 + ... + 37575.

It is an arithmetic number, because the mean of its divisors is an integer number (3882368).

Almost surely, 2^45715809 is an apocalyptic number.

It is an amenable number.

45715809 is a deficient number, since it is larger than the sum of its proper divisors (16402079).

45715809 is a wasteful number, since it uses less digits than its factorization.

45715809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1464.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 45715809 is about 6761.3466853875. The cubic root of 45715809 is about 357.5653855334.

The spelling of 45715809 in words is "forty-five million, seven hundred fifteen thousand, eight hundred nine".