13361903 has 4 divisors (see below), whose sum is σ = 13371768. Its totient is φ = 13352040.

The previous prime is 13361897. The next prime is 13361917. The reversal of 13361903 is 30916331.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13361903 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 (13361923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2501 + ... + 5742.

It is an arithmetic number, because the mean of its divisors is an integer number (3342942).

Almost surely, 2^13361903 is an apocalyptic number.

13361903 is a deficient number, since it is larger than the sum of its proper divisors (9865).

13361903 is an equidigital number, since it uses as much as digits as its factorization.

13361903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9864.

The product of its (nonzero) digits is 1458, while the sum is 26.

The square root of 13361903 is about 3655.3936860481. The cubic root of 13361903 is about 237.2954649021.

The spelling of 13361903 in words is "thirteen million, three hundred sixty-one thousand, nine hundred three".