13955911 has 2 divisors, whose sum is σ = 13955912. Its totient is φ = 13955910.

The previous prime is 13955891. The next prime is 13955957. The reversal of 13955911 is 11955931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13955911 - 2⁷ = 13955783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13955311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6977955 + 6977956.

It is an arithmetic number, because the mean of its divisors is an integer number (6977956).

Almost surely, 2^13955911 is an apocalyptic number.

13955911 is a deficient number, since it is larger than the sum of its proper divisors (1).

13955911 is an equidigital number, since it uses as much as digits as its factorization.

13955911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6075, while the sum is 34.

The square root of 13955911 is about 3735.7611004988. The cubic root of 13955911 is about 240.7609585513.

The spelling of 13955911 in words is "thirteen million, nine hundred fifty-five thousand, nine hundred eleven".