133982686 has 4 divisors (see below), whose sum is σ = 200974032. Its totient is φ = 66991342.

The previous prime is 133982677. The next prime is 133982707. The reversal of 133982686 is 686289331.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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, 33495670 + ... + 33495673.

It is an arithmetic number, because the mean of its divisors is an integer number (50243508).

Almost surely, 2^133982686 is an apocalyptic number.

133982686 is a deficient number, since it is larger than the sum of its proper divisors (66991346).

133982686 is an equidigital number, since it uses as much as digits as its factorization.

133982686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66991345.

The product of its digits is 373248, while the sum is 46.

The square root of 133982686 is about 11575.0890277354. The cubic root of 133982686 is about 511.7009540107.

The spelling of 133982686 in words is "one hundred thirty-three million, nine hundred eighty-two thousand, six hundred eighty-six".