13236881 has 8 divisors (see below), whose sum is σ = 15298560. Its totient is φ = 11217888.

The previous prime is 13236877. The next prime is 13236889. The reversal of 13236881 is 18863231.

It is a happy number.

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 13236881 - 2² = 13236877 is a prime.

It is a super-2 number, since 2×13236881² = 350430037216322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13236889) 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, 10001 + ... + 11246.

It is an arithmetic number, because the mean of its divisors is an integer number (1912320).

Almost surely, 2^13236881 is an apocalyptic number.

It is an amenable number.

13236881 is a deficient number, since it is larger than the sum of its proper divisors (2061679).

13236881 is an equidigital number, since it uses as much as digits as its factorization.

13236881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21343.

The product of its digits is 6912, while the sum is 32.

The square root of 13236881 is about 3638.2524651266. The cubic root of 13236881 is about 236.5530515519.

The spelling of 13236881 in words is "thirteen million, two hundred thirty-six thousand, eight hundred eighty-one".