2243130997 has 2 divisors, whose sum is σ = 2243130998. Its totient is φ = 2243130996.

The previous prime is 2243130983. The next prime is 2243131057. The reversal of 2243130997 is 7990313422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1776959716 + 466171281 = 42154^2 + 21591^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2243130997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2243130497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121565498 + 1121565499.

It is an arithmetic number, because the mean of its divisors is an integer number (1121565499).

Almost surely, 2^2243130997 is an apocalyptic number.

It is an amenable number.

2243130997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243130997 is an equidigital number, since it uses as much as digits as its factorization.

2243130997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 2243130997 is about 47361.7039072709. The cubic root of 2243130997 is about 1309.0358651868.

The spelling of 2243130997 in words is "two billion, two hundred forty-three million, one hundred thirty thousand, nine hundred ninety-seven".