133863286 has 4 divisors (see below), whose sum is σ = 200794932. Its totient is φ = 66931642.

The previous prime is 133863283. The next prime is 133863293. The reversal of 133863286 is 682368331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 682368331 = 2843 ⋅240017.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133863283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33465820 + ... + 33465823.

It is an arithmetic number, because the mean of its divisors is an integer number (50198733).

Almost surely, 2^133863286 is an apocalyptic number.

133863286 is a deficient number, since it is larger than the sum of its proper divisors (66931646).

133863286 is an equidigital number, since it uses as much as digits as its factorization.

133863286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66931645.

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

The square root of 133863286 is about 11569.9302504380. The cubic root of 133863286 is about 511.5489063748.

The spelling of 133863286 in words is "one hundred thirty-three million, eight hundred sixty-three thousand, two hundred eighty-six".