12653999 has 2 divisors, whose sum is σ = 12654000. Its totient is φ = 12653998.

The previous prime is 12653957. The next prime is 12654007. The reversal of 12653999 is 99935621.

12653999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12653999 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12653939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6326999 + 6327000.

It is an arithmetic number, because the mean of its divisors is an integer number (6327000).

Almost surely, 2^12653999 is an apocalyptic number.

12653999 is a deficient number, since it is larger than the sum of its proper divisors (1).

12653999 is an equidigital number, since it uses as much as digits as its factorization.

12653999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 131220, while the sum is 44.

The square root of 12653999 is about 3557.2459853094. The cubic root of 12653999 is about 233.0286210674.

The spelling of 12653999 in words is "twelve million, six hundred fifty-three thousand, nine hundred ninety-nine".