13191166 has 8 divisors (see below), whose sum is σ = 20321640. Its totient is φ = 6417288.

The previous prime is 13191103. The next prime is 13191169. The reversal of 13191166 is 66119131.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13191169) 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, 89056 + ... + 89203.

It is an arithmetic number, because the mean of its divisors is an integer number (2540205).

Almost surely, 2^13191166 is an apocalyptic number.

13191166 is a deficient number, since it is larger than the sum of its proper divisors (7130474).

13191166 is a wasteful number, since it uses less digits than its factorization.

13191166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178298.

The product of its digits is 972, while the sum is 28.

The square root of 13191166 is about 3631.9644822052. The cubic root of 13191166 is about 236.2804169379.

It can be divided in two parts, 1319 and 1166, that added together give a triangular number (2485 = T₇₀).

The spelling of 13191166 in words is "thirteen million, one hundred ninety-one thousand, one hundred sixty-six".