133081756 has 6 divisors (see below), whose sum is σ = 232893080. Its totient is φ = 66540876.

The previous prime is 133081699. The next prime is 133081759. The reversal of 133081756 is 657180331.

133081756 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133081759) 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, 16635216 + ... + 16635223.

Almost surely, 2^133081756 is an apocalyptic number.

It is an amenable number.

133081756 is a deficient number, since it is larger than the sum of its proper divisors (99811324).

133081756 is a wasteful number, since it uses less digits than its factorization.

133081756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33270443 (or 33270441 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 133081756 is about 11536.1066222535. The cubic root of 133081756 is about 510.5514424919.

The spelling of 133081756 in words is "one hundred thirty-three million, eighty-one thousand, seven hundred fifty-six".