220913045 has 30 divisors (see below), whose sum is σ = 294442638. Its totient is φ = 159102592.

The previous prime is 220913027. The next prime is 220913047. The reversal of 220913045 is 540319022.

It can be written as a sum of positive squares in 5 ways, for example, as 3556996 + 217356049 = 1886^2 + 14743^2 .

It is not a de Polignac number, because 220913045 - 2²⁶ = 153804181 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 (220913047) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 9604904 + ... + 9604926.

Almost surely, 2^220913045 is an apocalyptic number.

It is an amenable number.

220913045 is a deficient number, since it is larger than the sum of its proper divisors (73529593).

220913045 is an frugal number, since it uses more digits than its factorization.

220913045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 45 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 220913045 is about 14863.1438464411. The cubic root of 220913045 is about 604.5150543235.

The spelling of 220913045 in words is "two hundred twenty million, nine hundred thirteen thousand, forty-five".