12642841 has 2 divisors, whose sum is σ = 12642842. Its totient is φ = 12642840.

The previous prime is 12642827. The next prime is 12642853. The reversal of 12642841 is 14824621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7371225 + 5271616 = 2715^2 + 2296^2 .

It is a cyclic number.

It is not a de Polignac number, because 12642841 - 2¹⁷ = 12511769 is a prime.

It is a Chen prime.

It is equal to p₈₂₇₄₅₂ and since 12642841 and 827452 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (12642871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6321420 + 6321421.

It is an arithmetic number, because the mean of its divisors is an integer number (6321421).

Almost surely, 2^12642841 is an apocalyptic number.

It is an amenable number.

12642841 is a deficient number, since it is larger than the sum of its proper divisors (1).

12642841 is an equidigital number, since it uses as much as digits as its factorization.

12642841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3072, while the sum is 28.

The square root of 12642841 is about 3555.6772913188. The cubic root of 12642841 is about 232.9601078652.

The spelling of 12642841 in words is "twelve million, six hundred forty-two thousand, eight hundred forty-one".