13866043 has 2 divisors, whose sum is σ = 13866044. Its totient is φ = 13866042.

The previous prime is 13866037. The next prime is 13866091. The reversal of 13866043 is 34066831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13866043 - 2⁵ = 13866011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13865996 and 13866014.

It is not a weakly prime, because it can be changed into another prime (13860043) 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 as a sum of consecutive naturals, namely, 6933021 + 6933022.

It is an arithmetic number, because the mean of its divisors is an integer number (6933022).

Almost surely, 2^13866043 is an apocalyptic number.

13866043 is a deficient number, since it is larger than the sum of its proper divisors (1).

13866043 is an equidigital number, since it uses as much as digits as its factorization.

13866043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 13866043 is about 3723.7136033804. The cubic root of 13866043 is about 240.2430581598.

The spelling of 13866043 in words is "thirteen million, eight hundred sixty-six thousand, forty-three".