13245391 has 2 divisors, whose sum is σ = 13245392. Its totient is φ = 13245390.

The previous prime is 13245367. The next prime is 13245403. The reversal of 13245391 is 19354231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13245391 - 2⁵ = 13245359 is a prime.

It is a super-3 number, since 3×13245391³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13245301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6622695 + 6622696.

It is an arithmetic number, because the mean of its divisors is an integer number (6622696).

Almost surely, 2^13245391 is an apocalyptic number.

13245391 is a deficient number, since it is larger than the sum of its proper divisors (1).

13245391 is an equidigital number, since it uses as much as digits as its factorization.

13245391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 28.

The square root of 13245391 is about 3639.4217947361. The cubic root of 13245391 is about 236.6037340659.

The spelling of 13245391 in words is "thirteen million, two hundred forty-five thousand, three hundred ninety-one".