13806031 has 4 divisors (see below), whose sum is σ = 13814200. Its totient is φ = 13797864.

The previous prime is 13806019. The next prime is 13806047. The reversal of 13806031 is 13060831.

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 not a de Polignac number, because 13806031 - 2⁷ = 13805903 is a prime.

It is a super-2 number, since 2×13806031² = 381212983945922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13805993 and 13806011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13806071) 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, 501 + ... + 5278.

It is an arithmetic number, because the mean of its divisors is an integer number (3453550).

Almost surely, 2^13806031 is an apocalyptic number.

13806031 is a deficient number, since it is larger than the sum of its proper divisors (8169).

13806031 is an equidigital number, since it uses as much as digits as its factorization.

13806031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8168.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 13806031 is about 3715.6467808445. The cubic root of 13806031 is about 239.8959676433.

Adding to 13806031 its reverse (13060831), we get a palindrome (26866862).

The spelling of 13806031 in words is "thirteen million, eight hundred six thousand, thirty-one".