13803631 has 2 divisors, whose sum is σ = 13803632. Its totient is φ = 13803630.

The previous prime is 13803617. The next prime is 13803653. The reversal of 13803631 is 13630831.

It is a happy number.

13803631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (13630831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13803631 - 2¹⁵ = 13770863 is a prime.

It is a super-2 number, since 2×13803631² = 381080457568322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13803596 and 13803605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13803661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6901815 + 6901816.

It is an arithmetic number, because the mean of its divisors is an integer number (6901816).

Almost surely, 2^13803631 is an apocalyptic number.

13803631 is a deficient number, since it is larger than the sum of its proper divisors (1).

13803631 is an equidigital number, since it uses as much as digits as its factorization.

13803631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 13803631 is about 3715.3238082299. The cubic root of 13803631 is about 239.8820659002.

The spelling of 13803631 in words is "thirteen million, eight hundred three thousand, six hundred thirty-one".