11166143 has 2 divisors, whose sum is σ = 11166144. Its totient is φ = 11166142.

The previous prime is 11166139. The next prime is 11166149. The reversal of 11166143 is 34166111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11166143 - 2² = 11166139 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11166149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5583071 + 5583072.

It is an arithmetic number, because the mean of its divisors is an integer number (5583072).

Almost surely, 2^11166143 is an apocalyptic number.

11166143 is a deficient number, since it is larger than the sum of its proper divisors (1).

11166143 is an equidigital number, since it uses as much as digits as its factorization.

11166143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 23.

The square root of 11166143 is about 3341.5779206836. The cubic root of 11166143 is about 223.5121117443.

The spelling of 11166143 in words is "eleven million, one hundred sixty-six thousand, one hundred forty-three".