13955919 has 16 divisors (see below), whose sum is σ = 19443840. Its totient is φ = 8894880.

The previous prime is 13955911. The next prime is 13955957. The reversal of 13955919 is 91955931.

It is not a de Polignac number, because 13955919 - 2³ = 13955911 is a prime.

It is a super-2 number, since 2×13955919² = 389535350269122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13955911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5484 + ... + 7614.

It is an arithmetic number, because the mean of its divisors is an integer number (1215240).

Almost surely, 2^13955919 is an apocalyptic number.

13955919 is a deficient number, since it is larger than the sum of its proper divisors (5487921).

13955919 is a wasteful number, since it uses less digits than its factorization.

13955919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2230.

The product of its digits is 54675, while the sum is 42.

The square root of 13955919 is about 3735.7621712309. The cubic root of 13955919 is about 240.7610045554.

The spelling of 13955919 in words is "thirteen million, nine hundred fifty-five thousand, nine hundred nineteen".