13166443 has 2 divisors, whose sum is σ = 13166444. Its totient is φ = 13166442.

The previous prime is 13166431. The next prime is 13166467. The reversal of 13166443 is 34466131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13166443 - 2⁹ = 13165931 is a prime.

It is not a weakly prime, because it can be changed into another prime (13116443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6583221 + 6583222.

It is an arithmetic number, because the mean of its divisors is an integer number (6583222).

Almost surely, 2^13166443 is an apocalyptic number.

13166443 is a deficient number, since it is larger than the sum of its proper divisors (1).

13166443 is an equidigital number, since it uses as much as digits as its factorization.

13166443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 28.

The square root of 13166443 is about 3628.5593559979. The cubic root of 13166443 is about 236.1327116734.

The spelling of 13166443 in words is "thirteen million, one hundred sixty-six thousand, four hundred forty-three".