13915427 has 2 divisors, whose sum is σ = 13915428. Its totient is φ = 13915426.

The previous prime is 13915397. The next prime is 13915439. The reversal of 13915427 is 72451931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13915427 - 2²⁰ = 12866851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13915393 and 13915402.

It is not a weakly prime, because it can be changed into another prime (13915487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6957713 + 6957714.

It is an arithmetic number, because the mean of its divisors is an integer number (6957714).

Almost surely, 2^13915427 is an apocalyptic number.

13915427 is a deficient number, since it is larger than the sum of its proper divisors (1).

13915427 is an equidigital number, since it uses as much as digits as its factorization.

13915427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 32.

The square root of 13915427 is about 3730.3387245664. The cubic root of 13915427 is about 240.5279292948.

The spelling of 13915427 in words is "thirteen million, nine hundred fifteen thousand, four hundred twenty-seven".