12642853 has 2 divisors, whose sum is σ = 12642854. Its totient is φ = 12642852.

The previous prime is 12642841. The next prime is 12642857. The reversal of 12642853 is 35824621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12623809 + 19044 = 3553^2 + 138^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12642853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12642857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6321426 + 6321427.

It is an arithmetic number, because the mean of its divisors is an integer number (6321427).

Almost surely, 2^12642853 is an apocalyptic number.

It is an amenable number.

12642853 is a deficient number, since it is larger than the sum of its proper divisors (1).

12642853 is an equidigital number, since it uses as much as digits as its factorization.

12642853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 31.

The square root of 12642853 is about 3555.6789787606. The cubic root of 12642853 is about 232.9601815702.

The spelling of 12642853 in words is "twelve million, six hundred forty-two thousand, eight hundred fifty-three".