133866283 has 4 divisors (see below), whose sum is σ = 133898968. Its totient is φ = 133833600.

The previous prime is 133866263. The next prime is 133866289. The reversal of 133866283 is 382668331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 382668331 = 367 ⋅1042693.

It is a cyclic number.

It is not a de Polignac number, because 133866283 - 2⁵ = 133866251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133866289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9141 + ... + 18742.

It is an arithmetic number, because the mean of its divisors is an integer number (33474742).

Almost surely, 2^133866283 is an apocalyptic number.

133866283 is a deficient number, since it is larger than the sum of its proper divisors (32685).

133866283 is an equidigital number, since it uses as much as digits as its factorization.

133866283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32684.

The product of its digits is 124416, while the sum is 40.

The square root of 133866283 is about 11570.0597664835. The cubic root of 133866283 is about 511.5527239528.

The spelling of 133866283 in words is "one hundred thirty-three million, eight hundred sixty-six thousand, two hundred eighty-three".