13431166 has 8 divisors (see below), whose sum is σ = 23024880. Its totient is φ = 5756208.

The previous prime is 13431161. The next prime is 13431169. The reversal of 13431166 is 66113431.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 13431166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13431161) 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, 479671 + ... + 479698.

It is an arithmetic number, because the mean of its divisors is an integer number (2878110).

Almost surely, 2^13431166 is an apocalyptic number.

13431166 is a deficient number, since it is larger than the sum of its proper divisors (9593714).

13431166 is an equidigital number, since it uses as much as digits as its factorization.

13431166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959378.

The product of its digits is 1296, while the sum is 25.

The square root of 13431166 is about 3664.8555223910. The cubic root of 13431166 is about 237.7047748216.

Adding to 13431166 its reverse (66113431), we get a palindrome (79544597).

The spelling of 13431166 in words is "thirteen million, four hundred thirty-one thousand, one hundred sixty-six".