133680782 has 8 divisors (see below), whose sum is σ = 200595000. Its totient is φ = 66815784.

The previous prime is 133680779. The next prime is 133680791. The reversal of 133680782 is 287086331.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×133680782² = 35741102952263048, which contains 22 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 4532 + ... + 16967.

It is an arithmetic number, because the mean of its divisors is an integer number (25074375).

Almost surely, 2^133680782 is an apocalyptic number.

133680782 is a deficient number, since it is larger than the sum of its proper divisors (66914218).

133680782 is a wasteful number, since it uses less digits than its factorization.

133680782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24610.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 133680782 is about 11562.0405638451. The cubic root of 133680782 is about 511.3163253482.

The spelling of 133680782 in words is "one hundred thirty-three million, six hundred eighty thousand, seven hundred eighty-two".