13912499 has 2 divisors, whose sum is σ = 13912500. Its totient is φ = 13912498.

The previous prime is 13912471. The next prime is 13912501. The reversal of 13912499 is 99421931.

13912499 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13912499 is a prime.

Together with 13912501, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13912439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6956249 + 6956250.

It is an arithmetic number, because the mean of its divisors is an integer number (6956250).

Almost surely, 2^13912499 is an apocalyptic number.

13912499 is a deficient number, since it is larger than the sum of its proper divisors (1).

13912499 is an equidigital number, since it uses as much as digits as its factorization.

13912499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496, while the sum is 38.

The square root of 13912499 is about 3729.9462462615. The cubic root of 13912499 is about 240.5110579673.

The spelling of 13912499 in words is "thirteen million, nine hundred twelve thousand, four hundred ninety-nine".