13912291 has 2 divisors, whose sum is σ = 13912292. Its totient is φ = 13912290.

The previous prime is 13912277. The next prime is 13912303. The reversal of 13912291 is 19221931.

13912291 is digitally balanced in base 3, 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 not a de Polignac number, because 13912291 - 2⁷ = 13912163 is a prime.

It is not a weakly prime, because it can be changed into another prime (13912201) 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, 6956145 + 6956146.

It is an arithmetic number, because the mean of its divisors is an integer number (6956146).

Almost surely, 2^13912291 is an apocalyptic number.

13912291 is a deficient number, since it is larger than the sum of its proper divisors (1).

13912291 is an equidigital number, since it uses as much as digits as its factorization.

13912291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 972, while the sum is 28.

The square root of 13912291 is about 3729.9183637179. The cubic root of 13912291 is about 240.5098593676.

The spelling of 13912291 in words is "thirteen million, nine hundred twelve thousand, two hundred ninety-one".