13245857 has 2 divisors, whose sum is σ = 13245858. Its totient is φ = 13245856.

The previous prime is 13245823. The next prime is 13245877. The reversal of 13245857 is 75854231.

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., 8042896 + 5202961 = 2836^2 + 2281^2 .

It is a cyclic number.

It is not a de Polignac number, because 13245857 - 2¹⁸ = 12983713 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13245877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6622928 + 6622929.

It is an arithmetic number, because the mean of its divisors is an integer number (6622929).

Almost surely, 2^13245857 is an apocalyptic number.

It is an amenable number.

13245857 is a deficient number, since it is larger than the sum of its proper divisors (1).

13245857 is an equidigital number, since it uses as much as digits as its factorization.

13245857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33600, while the sum is 35.

The square root of 13245857 is about 3639.4858153316. The cubic root of 13245857 is about 236.6065087681.

The spelling of 13245857 in words is "thirteen million, two hundred forty-five thousand, eight hundred fifty-seven".