133183730 has 48 divisors (see below), whose sum is σ = 256763520. Its totient is φ = 49724064.

The previous prime is 133183667. The next prime is 133183789. The reversal of 133183730 is 37381331.

133183730 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 133183693 and 133183702.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 284957 + ... + 285423.

It is an arithmetic number, because the mean of its divisors is an integer number (5349240).

Almost surely, 2^133183730 is an apocalyptic number.

133183730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133183730 is a deficient number, since it is larger than the sum of its proper divisors (123579790).

133183730 is a wasteful number, since it uses less digits than its factorization.

133183730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591 (or 572 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 133183730 is about 11540.5255512910. The cubic root of 133183730 is about 510.6818126800.

The spelling of 133183730 in words is "one hundred thirty-three million, one hundred eighty-three thousand, seven hundred thirty".