133818143 has 2 divisors, whose sum is σ = 133818144. Its totient is φ = 133818142.

The previous prime is 133818133. The next prime is 133818199. The reversal of 133818143 is 341818331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133818143 - 2⁴ = 133818127 is a prime.

It is a Chen prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133818133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66909071 + 66909072.

It is an arithmetic number, because the mean of its divisors is an integer number (66909072).

Almost surely, 2^133818143 is an apocalyptic number.

133818143 is a deficient number, since it is larger than the sum of its proper divisors (1).

133818143 is an equidigital number, since it uses as much as digits as its factorization.

133818143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 32.

The square root of 133818143 is about 11567.9792098707. The cubic root of 133818143 is about 511.4913963351.

The spelling of 133818143 in words is "one hundred thirty-three million, eight hundred eighteen thousand, one hundred forty-three".