45571915 has 4 divisors (see below), whose sum is σ = 54686304. Its totient is φ = 36457528.

The previous prime is 45571909. The next prime is 45571921. The reversal of 45571915 is 51917554.

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

It is an interprime number because it is at equal distance from previous prime (45571909) and next prime (45571921).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45571915 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4557187 + ... + 4557196.

It is an arithmetic number, because the mean of its divisors is an integer number (13671576).

Almost surely, 2^45571915 is an apocalyptic number.

45571915 is a deficient number, since it is larger than the sum of its proper divisors (9114389).

45571915 is an equidigital number, since it uses as much as digits as its factorization.

45571915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9114388.

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

The square root of 45571915 is about 6750.6973713832. The cubic root of 45571915 is about 357.1898364485.

The spelling of 45571915 in words is "forty-five million, five hundred seventy-one thousand, nine hundred fifteen".