185330133 has 8 divisors (see below), whose sum is σ = 274563200. Its totient is φ = 123553404.

The previous prime is 185330111. The next prime is 185330149. The reversal of 185330133 is 331033581.

It is not a de Polignac number, because 185330133 - 2⁶ = 185330069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 6864079 = 185330133 / (1 + 8 + 5 + 3 + 3 + 0 + 1 + 3 + 3).

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 185330097 and 185330106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (185330333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3432013 + ... + 3432066.

It is an arithmetic number, because the mean of its divisors is an integer number (34320400).

Almost surely, 2^185330133 is an apocalyptic number.

It is an amenable number.

185330133 is a deficient number, since it is larger than the sum of its proper divisors (89233067).

185330133 is an equidigital number, since it uses as much as digits as its factorization.

185330133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6864088 (or 6864082 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 185330133 is about 13613.6010298525. The cubic root of 185330133 is about 570.1406578081.

The spelling of 185330133 in words is "one hundred eighty-five million, three hundred thirty thousand, one hundred thirty-three".