13091966 has 8 divisors (see below), whose sum is σ = 19907184. Its totient is φ = 6456240.

The previous prime is 13091941. The next prime is 13091971. The reversal of 13091966 is 66919031.

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

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, 44690 + ... + 44981.

It is an arithmetic number, because the mean of its divisors is an integer number (2488398).

Almost surely, 2^13091966 is an apocalyptic number.

13091966 is a deficient number, since it is larger than the sum of its proper divisors (6815218).

13091966 is an equidigital number, since it uses as much as digits as its factorization.

13091966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89746.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 13091966 is about 3618.2821891058. The cubic root of 13091966 is about 235.6866352279.

The spelling of 13091966 in words is "thirteen million, ninety-one thousand, nine hundred sixty-six".