45479215 has 4 divisors (see below), whose sum is σ = 54575064. Its totient is φ = 36383368.

The previous prime is 45479207. The next prime is 45479227. The reversal of 45479215 is 51297454.

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 45479215 - 2³ = 45479207 is a prime.

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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4547917 + ... + 4547926.

It is an arithmetic number, because the mean of its divisors is an integer number (13643766).

Almost surely, 2^45479215 is an apocalyptic number.

45479215 is a deficient number, since it is larger than the sum of its proper divisors (9095849).

45479215 is an equidigital number, since it uses as much as digits as its factorization.

45479215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9095848.

The product of its digits is 50400, while the sum is 37.

The square root of 45479215 is about 6743.8279189196. The cubic root of 45479215 is about 356.9474797656.

The spelling of 45479215 in words is "forty-five million, four hundred seventy-nine thousand, two hundred fifteen".