2249637121 has 2 divisors, whose sum is σ = 2249637122. Its totient is φ = 2249637120.

The previous prime is 2249637113. The next prime is 2249637151. The reversal of 2249637121 is 1217369422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1737972721 + 511664400 = 41689^2 + 22620^2 .

It is a cyclic number.

It is not a de Polignac number, because 2249637121 - 2³ = 2249637113 is a prime.

It is not a weakly prime, because it can be changed into another prime (2249637151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1124818560 + 1124818561.

It is an arithmetic number, because the mean of its divisors is an integer number (1124818561).

Almost surely, 2^2249637121 is an apocalyptic number.

It is an amenable number.

2249637121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2249637121 is an equidigital number, since it uses as much as digits as its factorization.

2249637121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 37.

The square root of 2249637121 is about 47430.3396677696. The cubic root of 2249637121 is about 1310.3002479824.

The spelling of 2249637121 in words is "two billion, two hundred forty-nine million, six hundred thirty-seven thousand, one hundred twenty-one".