12662651 has 2 divisors, whose sum is σ = 12662652. Its totient is φ = 12662650.

The previous prime is 12662641. The next prime is 12662659. The reversal of 12662651 is 15626621.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12662651 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12662659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6331325 + 6331326.

It is an arithmetic number, because the mean of its divisors is an integer number (6331326).

Almost surely, 2^12662651 is an apocalyptic number.

12662651 is a deficient number, since it is larger than the sum of its proper divisors (1).

12662651 is an equidigital number, since it uses as much as digits as its factorization.

12662651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 29.

The square root of 12662651 is about 3558.4618868269. The cubic root of 12662651 is about 233.0817190194.

The spelling of 12662651 in words is "twelve million, six hundred sixty-two thousand, six hundred fifty-one".