13369231 has 2 divisors, whose sum is σ = 13369232. Its totient is φ = 13369230.

The previous prime is 13369211. The next prime is 13369241. The reversal of 13369231 is 13296331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13369231 - 2⁵ = 13369199 is a prime.

It is a super-2 number, since 2×13369231² = 357472675062722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13369231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13369201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6684615 + 6684616.

It is an arithmetic number, because the mean of its divisors is an integer number (6684616).

Almost surely, 2^13369231 is an apocalyptic number.

13369231 is a deficient number, since it is larger than the sum of its proper divisors (1).

13369231 is an equidigital number, since it uses as much as digits as its factorization.

13369231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2916, while the sum is 28.

The square root of 13369231 is about 3656.3959030718. The cubic root of 13369231 is about 237.3388365530.

Subtracting from 13369231 its reverse (13296331), we obtain a square (72900 = 270²).

The spelling of 13369231 in words is "thirteen million, three hundred sixty-nine thousand, two hundred thirty-one".