13166291 has 4 divisors (see below), whose sum is σ = 13173552. Its totient is φ = 13159032.

The previous prime is 13166269. The next prime is 13166333. The reversal of 13166291 is 19266131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 19266131 = 431 ⋅44701.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13166291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13166201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1661 + ... + 5393.

It is an arithmetic number, because the mean of its divisors is an integer number (3293388).

Almost surely, 2^13166291 is an apocalyptic number.

13166291 is a deficient number, since it is larger than the sum of its proper divisors (7261).

13166291 is an equidigital number, since it uses as much as digits as its factorization.

13166291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7260.

The product of its digits is 1944, while the sum is 29.

The square root of 13166291 is about 3628.5384109859. The cubic root of 13166291 is about 236.1318029919.

The spelling of 13166291 in words is "thirteen million, one hundred sixty-six thousand, two hundred ninety-one".