45021045 has 16 divisors (see below), whose sum is σ = 73981440. Its totient is φ = 23361984.

The previous prime is 45021037. The next prime is 45021059. The reversal of 45021045 is 54012054.

45021045 = 1573² + 1574² + ... + 1590².

It is not a de Polignac number, because 45021045 - 2³ = 45021037 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40005 + ... + 41114.

It is an arithmetic number, because the mean of its divisors is an integer number (4623840).

Almost surely, 2^45021045 is an apocalyptic number.

It is an amenable number.

45021045 is a deficient number, since it is larger than the sum of its proper divisors (28960395).

45021045 is a wasteful number, since it uses less digits than its factorization.

45021045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81164.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 45021045 is about 6709.7723508328. The cubic root of 45021045 is about 355.7447698220.

Adding to 45021045 its reverse (54012054), we get a palindrome (99033099).

The spelling of 45021045 in words is "forty-five million, twenty-one thousand, forty-five".