12455957 has 2 divisors, whose sum is σ = 12455958. Its totient is φ = 12455956.

The previous prime is 12455921. The next prime is 12455959. The reversal of 12455957 is 75955421.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12453841 + 2116 = 3529^2 + 46^2 .

It is a cyclic number.

It is not a de Polignac number, because 12455957 - 2⁸ = 12455701 is a prime.

Together with 12455959, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12455957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12455959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6227978 + 6227979.

It is an arithmetic number, because the mean of its divisors is an integer number (6227979).

Almost surely, 2^12455957 is an apocalyptic number.

It is an amenable number.

12455957 is a deficient number, since it is larger than the sum of its proper divisors (1).

12455957 is an equidigital number, since it uses as much as digits as its factorization.

12455957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63000, while the sum is 38.

The square root of 12455957 is about 3529.2997889100. The cubic root of 12455957 is about 231.8065482587.

The spelling of 12455957 in words is "twelve million, four hundred fifty-five thousand, nine hundred fifty-seven".