13256423 has 2 divisors, whose sum is σ = 13256424. Its totient is φ = 13256422.

The previous prime is 13256417. The next prime is 13256443. The reversal of 13256423 is 32465231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13256423 - 2⁶ = 13256359 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13256392 and 13256401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13256443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6628211 + 6628212.

It is an arithmetic number, because the mean of its divisors is an integer number (6628212).

Almost surely, 2^13256423 is an apocalyptic number.

13256423 is a deficient number, since it is larger than the sum of its proper divisors (1).

13256423 is an equidigital number, since it uses as much as digits as its factorization.

13256423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 26.

The square root of 13256423 is about 3640.9371046476. The cubic root of 13256423 is about 236.6694044075.

The spelling of 13256423 in words is "thirteen million, two hundred fifty-six thousand, four hundred twenty-three".