13245457 has 2 divisors, whose sum is σ = 13245458. Its totient is φ = 13245456.

The previous prime is 13245437. The next prime is 13245467. The reversal of 13245457 is 75454231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13242321 + 3136 = 3639^2 + 56^2 .

It is a cyclic number.

It is not a de Polignac number, because 13245457 - 2¹¹ = 13243409 is a prime.

It is a super-2 number, since 2×13245457² = 350884262277698, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13245437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6622728 + 6622729.

It is an arithmetic number, because the mean of its divisors is an integer number (6622729).

Almost surely, 2^13245457 is an apocalyptic number.

It is an amenable number.

13245457 is a deficient number, since it is larger than the sum of its proper divisors (1).

13245457 is an equidigital number, since it uses as much as digits as its factorization.

13245457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16800, while the sum is 31.

The square root of 13245457 is about 3639.4308620992. The cubic root of 13245457 is about 236.6041270535.

Adding to 13245457 its reverse (75454231), we get a palindrome (88699688).

The spelling of 13245457 in words is "thirteen million, two hundred forty-five thousand, four hundred fifty-seven".