2268631 has 2 divisors, whose sum is σ = 2268632. Its totient is φ = 2268630.

The previous prime is 2268593. The next prime is 2268647. The reversal of 2268631 is 1368622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2268631 - 2⁷ = 2268503 is a prime.

It is a super-2 number, since 2×2268631² = 10293373228322, which contains 22 as substring.

2268631 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2268631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2268671) 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, 1134315 + 1134316.

It is an arithmetic number, because the mean of its divisors is an integer number (1134316).

2^2268631 is an apocalyptic number.

2268631 is a deficient number, since it is larger than the sum of its proper divisors (1).

2268631 is an equidigital number, since it uses as much as digits as its factorization.

2268631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 28.

The square root of 2268631 is about 1506.1975302064. The cubic root of 2268631 is about 131.3977577078.

Subtracting from 2268631 its reverse (1368622), we obtain a palindrome (900009).

The spelling of 2268631 in words is "two million, two hundred sixty-eight thousand, six hundred thirty-one".