13431226 has 8 divisors (see below), whose sum is σ = 20389824. Its totient is φ = 6634620.

The previous prime is 13431217. The next prime is 13431239. The reversal of 13431226 is 62213431.

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

It is a zygodrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 13431197 and 13431206.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40290 + ... + 40621.

It is an arithmetic number, because the mean of its divisors is an integer number (2548728).

Almost surely, 2^13431226 is an apocalyptic number.

13431226 is a deficient number, since it is larger than the sum of its proper divisors (6958598).

13431226 is an equidigital number, since it uses as much as digits as its factorization.

13431226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80996.

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

The square root of 13431226 is about 3664.8637082435. The cubic root of 13431226 is about 237.7051287811.

Adding to 13431226 its reverse (62213431), we get a palindrome (75644657).

The spelling of 13431226 in words is "thirteen million, four hundred thirty-one thousand, two hundred twenty-six".