13215166 has 8 divisors (see below), whose sum is σ = 19866600. Its totient is φ = 6592968.

The previous prime is 13215151. The next prime is 13215187. The reversal of 13215166 is 66151231.

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

It is a super-2 number, since 2×13215166² = 349281224815112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13215166.

It is a congruent number.

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, 6141 + ... + 8008.

It is an arithmetic number, because the mean of its divisors is an integer number (2483325).

Almost surely, 2^13215166 is an apocalyptic number.

13215166 is a deficient number, since it is larger than the sum of its proper divisors (6651434).

13215166 is a wasteful number, since it uses less digits than its factorization.

13215166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14618.

The product of its digits is 1080, while the sum is 25.

The square root of 13215166 is about 3635.2669778161. The cubic root of 13215166 is about 236.4236262739.

Adding to 13215166 its reverse (66151231), we get a palindrome (79366397).

It can be divided in two parts, 1321 and 5166, that multiplied together give a palindrome (6824286).

The spelling of 13215166 in words is "thirteen million, two hundred fifteen thousand, one hundred sixty-six".