12612931 has 2 divisors, whose sum is σ = 12612932. Its totient is φ = 12612930.

The previous prime is 12612923. The next prime is 12612949. The reversal of 12612931 is 13921621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12612931 - 2³ = 12612923 is a prime.

It is a super-2 number, since 2×12612931² = 318172056821522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12612896 and 12612905.

It is not a weakly prime, because it can be changed into another prime (12612331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6306465 + 6306466.

It is an arithmetic number, because the mean of its divisors is an integer number (6306466).

Almost surely, 2^12612931 is an apocalyptic number.

12612931 is a deficient number, since it is larger than the sum of its proper divisors (1).

12612931 is an equidigital number, since it uses as much as digits as its factorization.

12612931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 25.

The square root of 12612931 is about 3551.4688510530. The cubic root of 12612931 is about 232.7762531231.

The spelling of 12612931 in words is "twelve million, six hundred twelve thousand, nine hundred thirty-one".