13391423 has 2 divisors, whose sum is σ = 13391424. Its totient is φ = 13391422.

The previous prime is 13391401. The next prime is 13391429. The reversal of 13391423 is 32419331.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13391423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13391392 and 13391401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13391429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6695711 + 6695712.

It is an arithmetic number, because the mean of its divisors is an integer number (6695712).

Almost surely, 2^13391423 is an apocalyptic number.

13391423 is a deficient number, since it is larger than the sum of its proper divisors (1).

13391423 is an equidigital number, since it uses as much as digits as its factorization.

13391423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 26.

The square root of 13391423 is about 3659.4293270946. The cubic root of 13391423 is about 237.4700859831.

The spelling of 13391423 in words is "thirteen million, three hundred ninety-one thousand, four hundred twenty-three".