13815166 has 8 divisors (see below), whose sum is σ = 21813480. Its totient is φ = 6544008.

The previous prime is 13815161. The next prime is 13815167. The reversal of 13815166 is 66151831.

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

It is a super-3 number, since 3×13815166³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13815161) 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, 181741 + ... + 181816.

It is an arithmetic number, because the mean of its divisors is an integer number (2726685).

Almost surely, 2^13815166 is an apocalyptic number.

13815166 is a deficient number, since it is larger than the sum of its proper divisors (7998314).

13815166 is a wasteful number, since it uses less digits than its factorization.

13815166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363578.

The product of its digits is 4320, while the sum is 31.

The square root of 13815166 is about 3716.8758386581. The cubic root of 13815166 is about 239.9488664212.

Adding to 13815166 its reverse (66151831), we get a palindrome (79966997).

The spelling of 13815166 in words is "thirteen million, eight hundred fifteen thousand, one hundred sixty-six".