45190865 has 8 divisors (see below), whose sum is σ = 54316008. Its totient is φ = 36094720.

The previous prime is 45190843. The next prime is 45190891. The reversal of 45190865 is 56809154.

45190865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 341056 + 44849809 = 584^2 + 6697^2 .

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

It is not a de Polignac number, because 45190865 - 2¹⁸ = 44928721 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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3656 + ... + 10185.

It is an arithmetic number, because the mean of its divisors is an integer number (6789501).

Almost surely, 2^45190865 is an apocalyptic number.

It is an amenable number.

45190865 is a deficient number, since it is larger than the sum of its proper divisors (9125143).

45190865 is a wasteful number, since it uses less digits than its factorization.

45190865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14499.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 45190865 is about 6722.4151166080. The cubic root of 45190865 is about 356.1914999869.

The spelling of 45190865 in words is "forty-five million, one hundred ninety thousand, eight hundred sixty-five".