13732231 has 4 divisors (see below), whose sum is σ = 14455000. Its totient is φ = 13009464.

The previous prime is 13732211. The next prime is 13732237. The reversal of 13732231 is 13223731.

It is a happy number.

13732231 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13732231 - 2¹¹ = 13730183 is a prime.

It is a super-2 number, since 2×13732231² = 377148336474722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13732237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361356 + ... + 361393.

It is an arithmetic number, because the mean of its divisors is an integer number (3613750).

Almost surely, 2^13732231 is an apocalyptic number.

13732231 is a deficient number, since it is larger than the sum of its proper divisors (722769).

13732231 is an equidigital number, since it uses as much as digits as its factorization.

13732231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722768.

The product of its digits is 756, while the sum is 22.

The square root of 13732231 is about 3705.7024975030. The cubic root of 13732231 is about 239.4677498950.

Adding to 13732231 its reverse (13223731), we get a palindrome (26955962).

The spelling of 13732231 in words is "thirteen million, seven hundred thirty-two thousand, two hundred thirty-one".