13534231 has 2 divisors, whose sum is σ = 13534232. Its totient is φ = 13534230.

The previous prime is 13534211. The next prime is 13534247. The reversal of 13534231 is 13243531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13534231 - 2¹⁹ = 13009943 is a prime.

It is a super-2 number, since 2×13534231² = 366350817522722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13534211) 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 as a sum of consecutive naturals, namely, 6767115 + 6767116.

It is an arithmetic number, because the mean of its divisors is an integer number (6767116).

Almost surely, 2^13534231 is an apocalyptic number.

13534231 is a deficient number, since it is larger than the sum of its proper divisors (1).

13534231 is an equidigital number, since it uses as much as digits as its factorization.

13534231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 22.

The square root of 13534231 is about 3678.8899140909. The cubic root of 13534231 is about 238.3112409904.

Adding to 13534231 its reverse (13243531), we get a palindrome (26777762).

The spelling of 13534231 in words is "thirteen million, five hundred thirty-four thousand, two hundred thirty-one".