13065431 has 2 divisors, whose sum is σ = 13065432. Its totient is φ = 13065430.

The previous prime is 13065427. The next prime is 13065433. The reversal of 13065431 is 13456031.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13065431 - 2² = 13065427 is a prime.

It is a super-2 number, since 2×13065431² = 341410974431522, which contains 22 as substring.

Together with 13065433, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 13065397 and 13065406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13065433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6532715 + 6532716.

It is an arithmetic number, because the mean of its divisors is an integer number (6532716).

Almost surely, 2^13065431 is an apocalyptic number.

13065431 is a deficient number, since it is larger than the sum of its proper divisors (1).

13065431 is an equidigital number, since it uses as much as digits as its factorization.

13065431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 13065431 is about 3614.6135339757. The cubic root of 13065431 is about 235.5272964184.

The spelling of 13065431 in words is "thirteen million, sixty-five thousand, four hundred thirty-one".