12355841 has 2 divisors, whose sum is σ = 12355842. Its totient is φ = 12355840.

The previous prime is 12355823. The next prime is 12355843. The reversal of 12355841 is 14855321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6250000 + 6105841 = 2500^2 + 2471^2 .

It is a cyclic number.

It is not a de Polignac number, because 12355841 - 2²² = 8161537 is a prime.

Together with 12355843, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12355843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6177920 + 6177921.

It is an arithmetic number, because the mean of its divisors is an integer number (6177921).

Almost surely, 2^12355841 is an apocalyptic number.

It is an amenable number.

12355841 is a deficient number, since it is larger than the sum of its proper divisors (1).

12355841 is an equidigital number, since it uses as much as digits as its factorization.

12355841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4800, while the sum is 29.

The square root of 12355841 is about 3515.0876233744. The cubic root of 12355841 is about 231.1838207509.

The spelling of 12355841 in words is "twelve million, three hundred fifty-five thousand, eight hundred forty-one".