2243739931 has 2 divisors, whose sum is σ = 2243739932. Its totient is φ = 2243739930.

The previous prime is 2243739919. The next prime is 2243739937. The reversal of 2243739931 is 1399373422.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2243739931 - 2¹³ = 2243731739 is a prime.

It is a super-2 number, since 2×2243739931² = 10068737755927769522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2243739937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121869965 + 1121869966.

It is an arithmetic number, because the mean of its divisors is an integer number (1121869966).

Almost surely, 2^2243739931 is an apocalyptic number.

2243739931 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243739931 is an equidigital number, since it uses as much as digits as its factorization.

2243739931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 43.

The square root of 2243739931 is about 47368.1320193229. The cubic root of 2243739931 is about 1309.1543074189.

The spelling of 2243739931 in words is "two billion, two hundred forty-three million, seven hundred thirty-nine thousand, nine hundred thirty-one".