13783231 has 12 divisors (see below), whose sum is σ = 17315536. Its totient is φ = 10739520.

The previous prime is 13783201. The next prime is 13783241. The reversal of 13783231 is 13238731.

13783231 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13783231 - 2⁵ = 13783199 is a prime.

It is a super-2 number, since 2×13783231² = 379954913598722, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 13783231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13783201) 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 11 ways as a sum of consecutive naturals, for example, 7290 + ... + 8983.

Almost surely, 2^13783231 is an apocalyptic number.

13783231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13783231 is a deficient number, since it is larger than the sum of its proper divisors (3532305).

13783231 is a wasteful number, since it uses less digits than its factorization.

13783231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16302 (or 16291 counting only the distinct ones).

The product of its digits is 3024, while the sum is 28.

The square root of 13783231 is about 3712.5774066004. The cubic root of 13783231 is about 239.7638359739.

The spelling of 13783231 in words is "thirteen million, seven hundred eighty-three thousand, two hundred thirty-one".