133606982 has 4 divisors (see below), whose sum is σ = 200410476. Its totient is φ = 66803490.

The previous prime is 133606981. The next prime is 133606997. The reversal of 133606982 is 289606331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 289606331 = 7 ⋅41372333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133606981) 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 as a sum of consecutive naturals, namely, 33401744 + ... + 33401747.

It is an arithmetic number, because the mean of its divisors is an integer number (50102619).

Almost surely, 2^133606982 is an apocalyptic number.

133606982 is a deficient number, since it is larger than the sum of its proper divisors (66803494).

133606982 is an equidigital number, since it uses as much as digits as its factorization.

133606982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66803493.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 133606982 is about 11558.8486450857. The cubic root of 133606982 is about 511.2222153587. Note that the first 4 decimals are identical.

The spelling of 133606982 in words is "one hundred thirty-three million, six hundred six thousand, nine hundred eighty-two".