12612831 has 16 divisors (see below), whose sum is σ = 20967168. Its totient is φ = 6552000.

The previous prime is 12612829. The next prime is 12612833. The reversal of 12612831 is 13821621.

It is an interprime number because it is at equal distance from previous prime (12612829) and next prime (12612833).

It is not a de Polignac number, because 12612831 - 2¹ = 12612829 is a prime.

It is a super-2 number, since 2×12612831² = 318167011669122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12612833) 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 in 15 ways as a sum of consecutive naturals, for example, 27070 + ... + 27531.

It is an arithmetic number, because the mean of its divisors is an integer number (1310448).

Almost surely, 2^12612831 is an apocalyptic number.

12612831 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12612831 is a deficient number, since it is larger than the sum of its proper divisors (8354337).

12612831 is a wasteful number, since it uses less digits than its factorization.

12612831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54622.

The product of its digits is 576, while the sum is 24.

The square root of 12612831 is about 3551.4547723433. The cubic root of 12612831 is about 232.7756379426.

The spelling of 12612831 in words is "twelve million, six hundred twelve thousand, eight hundred thirty-one".