2231042449 has 2 divisors, whose sum is σ = 2231042450. Its totient is φ = 2231042448.

The previous prime is 2231042393. The next prime is 2231042563. The reversal of 2231042449 is 9442401322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2230861824 + 180625 = 47232^2 + 425^2 .

It is a cyclic number.

It is not a de Polignac number, because 2231042449 - 2⁷ = 2231042321 is a prime.

It is a super-3 number, since 3×2231042449³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2231042449.

It is not a weakly prime, because it can be changed into another prime (2231049449) 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, 1115521224 + 1115521225.

It is an arithmetic number, because the mean of its divisors is an integer number (1115521225).

Almost surely, 2^2231042449 is an apocalyptic number.

It is an amenable number.

2231042449 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231042449 is an equidigital number, since it uses as much as digits as its factorization.

2231042449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 2231042449 is about 47233.9120653795. The cubic root of 2231042449 is about 1306.6801022136.

The spelling of 2231042449 in words is "two billion, two hundred thirty-one million, forty-two thousand, four hundred forty-nine".