45218847 has 8 divisors (see below), whose sum is σ = 61921456. Its totient is φ = 29331072.

The previous prime is 45218819. The next prime is 45218909. The reversal of 45218847 is 74881254.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45218847 - 2⁶ = 45218783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45218447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203578 + ... + 203799.

It is an arithmetic number, because the mean of its divisors is an integer number (7740182).

Almost surely, 2^45218847 is an apocalyptic number.

45218847 is a deficient number, since it is larger than the sum of its proper divisors (16702609).

45218847 is a wasteful number, since it uses less digits than its factorization.

45218847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407417.

The product of its digits is 71680, while the sum is 39.

The square root of 45218847 is about 6724.4960405966. The cubic root of 45218847 is about 356.2650022614.

The spelling of 45218847 in words is "forty-five million, two hundred eighteen thousand, eight hundred forty-seven".