12631299 has 4 divisors (see below), whose sum is σ = 16841736. Its totient is φ = 8420864.

The previous prime is 12631279. The next prime is 12631303. The reversal of 12631299 is 99213621.

12631299 is nontrivially palindromic in base 2.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12631299 - 2¹² = 12627203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12631279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2105214 + ... + 2105219.

It is an arithmetic number, because the mean of its divisors is an integer number (4210434).

Almost surely, 2^12631299 is an apocalyptic number.

12631299 is a deficient number, since it is larger than the sum of its proper divisors (4210437).

12631299 is an equidigital number, since it uses as much as digits as its factorization.

12631299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4210436.

The product of its digits is 5832, while the sum is 33.

The square root of 12631299 is about 3554.0538825403. The cubic root of 12631299 is about 232.8891943679.

The spelling of 12631299 in words is "twelve million, six hundred thirty-one thousand, two hundred ninety-nine".