13918166 has 4 divisors (see below), whose sum is σ = 20877252. Its totient is φ = 6959082.

The previous prime is 13918139. The next prime is 13918181. The reversal of 13918166 is 66181931.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3479540 + ... + 3479543.

It is an arithmetic number, because the mean of its divisors is an integer number (5219313).

Almost surely, 2^13918166 is an apocalyptic number.

13918166 is a deficient number, since it is larger than the sum of its proper divisors (6959086).

13918166 is an equidigital number, since it uses as much as digits as its factorization.

13918166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6959085.

The product of its digits is 7776, while the sum is 35.

The square root of 13918166 is about 3730.7058313408. The cubic root of 13918166 is about 240.5437094496.

The spelling of 13918166 in words is "thirteen million, nine hundred eighteen thousand, one hundred sixty-six".