13726231 has 4 divisors (see below), whose sum is σ = 13808592. Its totient is φ = 13643872.

The previous prime is 13726201. The next prime is 13726249. The reversal of 13726231 is 13262731.

13726231 is digitally balanced in base 2, 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 13726231 - 2¹³ = 13718039 is a prime.

It is a super-2 number, since 2×13726231² = 376818834930722, 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 = 13726196 and 13726205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13726201) 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, 40930 + ... + 41263.

It is an arithmetic number, because the mean of its divisors is an integer number (3452148).

Almost surely, 2^13726231 is an apocalyptic number.

13726231 is a deficient number, since it is larger than the sum of its proper divisors (82361).

13726231 is an equidigital number, since it uses as much as digits as its factorization.

13726231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82360.

The product of its digits is 1512, while the sum is 25.

The square root of 13726231 is about 3704.8928459538. The cubic root of 13726231 is about 239.4328680706.

Adding to 13726231 its reverse (13262731), we get a palindrome (26988962).

The spelling of 13726231 in words is "thirteen million, seven hundred twenty-six thousand, two hundred thirty-one".