13955903 has 16 divisors (see below), whose sum is σ = 15482880. Its totient is φ = 12501216.

The previous prime is 13955891. The next prime is 13955911. The reversal of 13955903 is 30955931.

It is not a de Polignac number, because 13955903 - 2⁸ = 13955647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13955603) 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, 109826 + ... + 109952.

It is an arithmetic number, because the mean of its divisors is an integer number (967680).

Almost surely, 2^13955903 is an apocalyptic number.

13955903 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13955903 is a deficient number, since it is larger than the sum of its proper divisors (1526977).

13955903 is a wasteful number, since it uses less digits than its factorization.

13955903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326.

The product of its (nonzero) digits is 18225, while the sum is 35.

The square root of 13955903 is about 3735.7600297664. The cubic root of 13955903 is about 240.7609125472.

The spelling of 13955903 in words is "thirteen million, nine hundred fifty-five thousand, nine hundred three".