12288631 has 2 divisors, whose sum is σ = 12288632. Its totient is φ = 12288630.

The previous prime is 12288623. The next prime is 12288659. The reversal of 12288631 is 13688221.

It is a weak prime.

It is an emirp because it is prime and its reverse (13688221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12288631 - 2³ = 12288623 is a prime.

It is a super-2 number, since 2×12288631² = 302020903708322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12288593 and 12288602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12285631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6144315 + 6144316.

It is an arithmetic number, because the mean of its divisors is an integer number (6144316).

Almost surely, 2^12288631 is an apocalyptic number.

12288631 is a deficient number, since it is larger than the sum of its proper divisors (1).

12288631 is an equidigital number, since it uses as much as digits as its factorization.

12288631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 31.

The square root of 12288631 is about 3505.5143702458. The cubic root of 12288631 is about 230.7638810925.

The spelling of 12288631 in words is "twelve million, two hundred eighty-eight thousand, six hundred thirty-one".