45020865 has 16 divisors (see below), whose sum is σ = 72603648. Its totient is φ = 23821056.

The previous prime is 45020863. The next prime is 45020869. The reversal of 45020865 is 56802054.

It is not a de Polignac number, because 45020865 - 2¹ = 45020863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45020863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9912 + ... + 13721.

It is an arithmetic number, because the mean of its divisors is an integer number (4537728).

Almost surely, 2^45020865 is an apocalyptic number.

It is an amenable number.

45020865 is a deficient number, since it is larger than the sum of its proper divisors (27582783).

45020865 is a wasteful number, since it uses less digits than its factorization.

45020865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23768.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 45020865 is about 6709.7589375476. The cubic root of 45020865 is about 355.7442957168.

The spelling of 45020865 in words is "forty-five million, twenty thousand, eight hundred sixty-five".