45872815 has 4 divisors (see below), whose sum is σ = 55047384. Its totient is φ = 36698248.

The previous prime is 45872803. The next prime is 45872837. The reversal of 45872815 is 51827854.

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 45872815 - 2⁹ = 45872303 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4587277 + ... + 4587286.

It is an arithmetic number, because the mean of its divisors is an integer number (13761846).

Almost surely, 2^45872815 is an apocalyptic number.

45872815 is a deficient number, since it is larger than the sum of its proper divisors (9174569).

45872815 is an equidigital number, since it uses as much as digits as its factorization.

45872815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9174568.

The product of its digits is 89600, while the sum is 40.

The square root of 45872815 is about 6772.9472905080. The cubic root of 45872815 is about 357.9742576915.

The spelling of 45872815 in words is "forty-five million, eight hundred seventy-two thousand, eight hundred fifteen".