13636231 has 8 divisors (see below), whose sum is σ = 15964704. Its totient is φ = 11402880.

The previous prime is 13636223. The next prime is 13636237. The reversal of 13636231 is 13263631.

13636231 is nontrivially palindromic in base 5.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13636231 - 2³ = 13636223 is a prime.

It is a super-2 number, since 2×13636231² = 371893591770722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13636196 and 13636205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13636237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23470 + ... + 24043.

It is an arithmetic number, because the mean of its divisors is an integer number (1995588).

Almost surely, 2^13636231 is an apocalyptic number.

13636231 is a deficient number, since it is larger than the sum of its proper divisors (2328473).

13636231 is an equidigital number, since it uses as much as digits as its factorization.

13636231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47561.

The product of its digits is 1944, while the sum is 25.

The square root of 13636231 is about 3692.7267702878. The cubic root of 13636231 is about 238.9084165597.

Adding to 13636231 its reverse (13263631), we get a palindrome (26899862).

The spelling of 13636231 in words is "thirteen million, six hundred thirty-six thousand, two hundred thirty-one".