2231689633 has 2 divisors, whose sum is σ = 2231689634. Its totient is φ = 2231689632.

The previous prime is 2231689627. The next prime is 2231689657. The reversal of 2231689633 is 3369861322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2127792384 + 103897249 = 46128^2 + 10193^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2231689633 is a prime.

It is a super-3 number, since 3×2231689633³ (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 2231689633.

It is not a weakly prime, because it can be changed into another prime (2231689613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115844816 + 1115844817.

It is an arithmetic number, because the mean of its divisors is an integer number (1115844817).

Almost surely, 2^2231689633 is an apocalyptic number.

It is an amenable number.

2231689633 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231689633 is an equidigital number, since it uses as much as digits as its factorization.

2231689633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 43.

The square root of 2231689633 is about 47240.7624091737. The cubic root of 2231689633 is about 1306.8064378792.

It can be divided in two parts, 2231689 and 633, that added together give a palindrome (2232322).

The spelling of 2231689633 in words is "two billion, two hundred thirty-one million, six hundred eighty-nine thousand, six hundred thirty-three".