133730775 has 18 divisors (see below), whose sum is σ = 239527080. Its totient is φ = 71322960.

The previous prime is 133730749. The next prime is 133730791. The reversal of 133730775 is 577037331.

It is not a de Polignac number, because 133730775 - 2⁵ = 133730743 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 17 ways as a sum of consecutive naturals, for example, 296955 + ... + 297404.

It is an arithmetic number, because the mean of its divisors is an integer number (13307060).

Almost surely, 2^133730775 is an apocalyptic number.

133730775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

133730775 is a deficient number, since it is larger than the sum of its proper divisors (105796305).

133730775 is a wasteful number, since it uses less digits than its factorization.

133730775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594375 (or 594367 counting only the distinct ones).

The product of its (nonzero) digits is 46305, while the sum is 36.

The square root of 133730775 is about 11564.2023071200. The cubic root of 133730775 is about 511.3800569003.

The spelling of 133730775 in words is "one hundred thirty-three million, seven hundred thirty thousand, seven hundred seventy-five".