12506929 has 2 divisors, whose sum is σ = 12506930. Its totient is φ = 12506928.

The previous prime is 12506881. The next prime is 12506933. The reversal of 12506929 is 92960521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11189025 + 1317904 = 3345^2 + 1148^2 .

It is a cyclic number.

It is not a de Polignac number, because 12506929 - 2¹¹ = 12504881 is a prime.

It is a super-2 number, since 2×12506929² = 312846546022082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12506894 and 12506903.

It is not a weakly prime, because it can be changed into another prime (12506969) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6253464 + 6253465.

It is an arithmetic number, because the mean of its divisors is an integer number (6253465).

Almost surely, 2^12506929 is an apocalyptic number.

It is an amenable number.

12506929 is a deficient number, since it is larger than the sum of its proper divisors (1).

12506929 is an equidigital number, since it uses as much as digits as its factorization.

12506929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 12506929 is about 3536.5136787520. The cubic root of 12506929 is about 232.1223158516.

The spelling of 12506929 in words is "twelve million, five hundred six thousand, nine hundred twenty-nine".