2243775613 has 4 divisors (see below), whose sum is σ = 2244600540. Its totient is φ = 2242950688.

The previous prime is 2243775581. The next prime is 2243775619. The reversal of 2243775613 is 3165773422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1146973689 + 1096801924 = 33867^2 + 33118^2 .

It is a cyclic number.

It is not a de Polignac number, because 2243775613 - 2⁵ = 2243775581 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 (2243775619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408370 + ... + 413827.

It is an arithmetic number, because the mean of its divisors is an integer number (561150135).

Almost surely, 2^2243775613 is an apocalyptic number.

It is an amenable number.

2243775613 is a deficient number, since it is larger than the sum of its proper divisors (824927).

2243775613 is an equidigital number, since it uses as much as digits as its factorization.

2243775613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824926.

The product of its digits is 211680, while the sum is 40.

The square root of 2243775613 is about 47368.5086634570. The cubic root of 2243775613 is about 1309.1612471710.

The spelling of 2243775613 in words is "two billion, two hundred forty-three million, seven hundred seventy-five thousand, six hundred thirteen".