13749903 has 24 divisors (see below), whose sum is σ = 20605728. Its totient is φ = 8828352.

The previous prime is 13749893. The next prime is 13749907. The reversal of 13749903 is 30994731.

It is not a de Polignac number, because 13749903 - 2⁴ = 13749887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13749907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52150 + ... + 52412.

It is an arithmetic number, because the mean of its divisors is an integer number (858572).

Almost surely, 2^13749903 is an apocalyptic number.

13749903 is a deficient number, since it is larger than the sum of its proper divisors (6855825).

13749903 is a wasteful number, since it uses less digits than its factorization.

13749903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463 (or 460 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 13749903 is about 3708.0861640474. The cubic root of 13749903 is about 239.5704294970.

The spelling of 13749903 in words is "thirteen million, seven hundred forty-nine thousand, nine hundred three".