13532231 has 6 divisors (see below), whose sum is σ = 13655880. Its totient is φ = 13409676.

The previous prime is 13532219. The next prime is 13532249. The reversal of 13532231 is 13223531.

It is not a de Polignac number, because 13532231 - 2²² = 9337927 is a prime.

It is a super-2 number, since 2×13532231² = 366242551674722, 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 (13532251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15710 + ... + 16548.

It is an arithmetic number, because the mean of its divisors is an integer number (2275980).

Almost surely, 2^13532231 is an apocalyptic number.

13532231 is a deficient number, since it is larger than the sum of its proper divisors (123649).

13532231 is an frugal number, since it uses more digits than its factorization.

13532231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093 (or 966 counting only the distinct ones).

The product of its digits is 540, while the sum is 20.

The square root of 13532231 is about 3678.6180829219. The cubic root of 13532231 is about 238.2995017208.

Adding to 13532231 its reverse (13223531), we get a palindrome (26755762).

The spelling of 13532231 in words is "thirteen million, five hundred thirty-two thousand, two hundred thirty-one".