13266231 has 16 divisors (see below), whose sum is σ = 19747200. Its totient is φ = 7852320.

The previous prime is 13266229. The next prime is 13266257.

It is a happy number.

13266231 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 13266231 - 2¹ = 13266229 is a prime.

It is a super-2 number, since 2×13266231² = 351985769890722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13266221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3256 + ... + 6093.

It is an arithmetic number, because the mean of its divisors is an integer number (1234200).

Almost surely, 2^13266231 is an apocalyptic number.

13266231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13266231 is a deficient number, since it is larger than the sum of its proper divisors (6480969).

13266231 is a wasteful number, since it uses less digits than its factorization.

13266231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9406.

The product of its digits is 1296, while the sum is 24.

The square root of 13266231 is about 3642.2837615979. The cubic root of 13266231 is about 236.7277580393.

It can be divided in two parts, 1326 and 6231, that added together give a palindrome (7557).

The spelling of 13266231 in words is "thirteen million, two hundred sixty-six thousand, two hundred thirty-one".