13231426 has 8 divisors (see below), whose sum is σ = 21373884. Its totient is φ = 6106800.

The previous prime is 13231411. The next prime is 13231481. The reversal of 13231426 is 62413231.

It can be written as a sum of positive squares in 2 ways, for example, as 11229201 + 2002225 = 3351^2 + 1415^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 13231397 and 13231406.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 254425 + ... + 254476.

Almost surely, 2^13231426 is an apocalyptic number.

13231426 is a deficient number, since it is larger than the sum of its proper divisors (8142458).

13231426 is a wasteful number, since it uses less digits than its factorization.

13231426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508916.

The product of its digits is 864, while the sum is 22.

The square root of 13231426 is about 3637.5027147756. The cubic root of 13231426 is about 236.5205520983.

Adding to 13231426 its reverse (62413231), we get a palindrome (75644657).

The spelling of 13231426 in words is "thirteen million, two hundred thirty-one thousand, four hundred twenty-six".