13735231 has 4 divisors (see below), whose sum is σ = 13806592. Its totient is φ = 13663872.

The previous prime is 13735229. The next prime is 13735237. The reversal of 13735231 is 13253731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13253731 = 103 ⋅128677.

It is a cyclic number.

It is not a de Polignac number, because 13735231 - 2¹ = 13735229 is a prime.

It is a super-2 number, since 2×13735231² = 377313141246722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13735196 and 13735205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13735237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35391 + ... + 35776.

It is an arithmetic number, because the mean of its divisors is an integer number (3451648).

Almost surely, 2^13735231 is an apocalyptic number.

13735231 is a deficient number, since it is larger than the sum of its proper divisors (71361).

13735231 is an equidigital number, since it uses as much as digits as its factorization.

13735231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71360.

The product of its digits is 1890, while the sum is 25.

The square root of 13735231 is about 3706.1072569476. The cubic root of 13735231 is about 239.4851869971.

Adding to 13735231 its reverse (13253731), we get a palindrome (26988962).

The spelling of 13735231 in words is "thirteen million, seven hundred thirty-five thousand, two hundred thirty-one".