133280866 has 8 divisors (see below), whose sum is σ = 200350800. Its totient is φ = 66497268.

The previous prime is 133280827. The next prime is 133280869. The reversal of 133280866 is 668082331.

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

It is not an unprimeable number, because it can be changed into a prime (133280869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70416 + ... + 72283.

It is an arithmetic number, because the mean of its divisors is an integer number (25043850).

Almost surely, 2^133280866 is an apocalyptic number.

133280866 is a deficient number, since it is larger than the sum of its proper divisors (67069934).

133280866 is a wasteful number, since it uses less digits than its factorization.

133280866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143168.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 133280866 is about 11544.7332580705. The cubic root of 133280866 is about 510.8059357834.

The spelling of 133280866 in words is "one hundred thirty-three million, two hundred eighty thousand, eight hundred sixty-six".