13263191 has 2 divisors, whose sum is σ = 13263192. Its totient is φ = 13263190.

The previous prime is 13263181. The next prime is 13263193. The reversal of 13263191 is 19136231.

13263191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13263191 - 2⁶ = 13263127 is a prime.

Together with 13263193, 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 13263191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13263193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6631595 + 6631596.

It is an arithmetic number, because the mean of its divisors is an integer number (6631596).

Almost surely, 2^13263191 is an apocalyptic number.

13263191 is a deficient number, since it is larger than the sum of its proper divisors (1).

13263191 is an equidigital number, since it uses as much as digits as its factorization.

13263191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972, while the sum is 26.

The square root of 13263191 is about 3641.8664170999. The cubic root of 13263191 is about 236.7096743459.

The spelling of 13263191 in words is "thirteen million, two hundred sixty-three thousand, one hundred ninety-one".