45220113 has 24 divisors (see below), whose sum is σ = 68717376. Its totient is φ = 29710800.

The previous prime is 45220079. The next prime is 45220117. The reversal of 45220113 is 31102254.

45220113 is a `hidden beast` number, since 452 + 201 + 13 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-45220113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45220117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15943 + ... + 18563.

It is an arithmetic number, because the mean of its divisors is an integer number (2863224).

Almost surely, 2^45220113 is an apocalyptic number.

It is an amenable number.

45220113 is a deficient number, since it is larger than the sum of its proper divisors (23497263).

45220113 is an equidigital number, since it uses as much as digits as its factorization.

45220113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2707 (or 2695 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 45220113 is about 6724.5901733860. The cubic root of 45220113 is about 356.2683270350.

Adding to 45220113 its reverse (31102254), we get a palindrome (76322367).

The spelling of 45220113 in words is "forty-five million, two hundred twenty thousand, one hundred thirteen".