12514721 has 2 divisors, whose sum is σ = 12514722. Its totient is φ = 12514720.

The previous prime is 12514693. The next prime is 12514727. The reversal of 12514721 is 12741521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12496225 + 18496 = 3535^2 + 136^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12514721 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12514727) 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, 6257360 + 6257361.

It is an arithmetic number, because the mean of its divisors is an integer number (6257361).

Almost surely, 2^12514721 is an apocalyptic number.

It is an amenable number.

12514721 is a deficient number, since it is larger than the sum of its proper divisors (1).

12514721 is an equidigital number, since it uses as much as digits as its factorization.

12514721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 560, while the sum is 23.

The square root of 12514721 is about 3537.6151571362. The cubic root of 12514721 is about 232.1705110454.

The spelling of 12514721 in words is "twelve million, five hundred fourteen thousand, seven hundred twenty-one".