13381983 has 8 divisors (see below), whose sum is σ = 19825200. Its totient is φ = 8921304.

The previous prime is 13381939. The next prime is 13381993. The reversal of 13381983 is 38918331.

It is not a de Polignac number, because 13381983 - 2⁶ = 13381919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13381903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247788 + ... + 247841.

It is an arithmetic number, because the mean of its divisors is an integer number (2478150).

Almost surely, 2^13381983 is an apocalyptic number.

13381983 is a deficient number, since it is larger than the sum of its proper divisors (6443217).

13381983 is an equidigital number, since it uses as much as digits as its factorization.

13381983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495638 (or 495632 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 13381983 is about 3658.1392811100. The cubic root of 13381983 is about 237.4142730305.

It can be divided in two parts, 1338 and 1983, that added together give a triangular number (3321 = T₈₁).

The spelling of 13381983 in words is "thirteen million, three hundred eighty-one thousand, nine hundred eighty-three".