13355231 has 2 divisors, whose sum is σ = 13355232. Its totient is φ = 13355230.

The previous prime is 13355227. The next prime is 13355257. The reversal of 13355231 is 13255331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13355231 - 2² = 13355227 is a prime.

It is a super-2 number, since 2×13355231² = 356724390126722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13355197 and 13355206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13355201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6677615 + 6677616.

It is an arithmetic number, because the mean of its divisors is an integer number (6677616).

Almost surely, 2^13355231 is an apocalyptic number.

13355231 is a deficient number, since it is larger than the sum of its proper divisors (1).

13355231 is an equidigital number, since it uses as much as digits as its factorization.

13355231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1350, while the sum is 23.

The square root of 13355231 is about 3654.4809480965. The cubic root of 13355231 is about 237.2559620724.

The spelling of 13355231 in words is "thirteen million, three hundred fifty-five thousand, two hundred thirty-one".