188272133 has 8 divisors (see below), whose sum is σ = 215255040. Its totient is φ = 161310960.

The previous prime is 188272129. The next prime is 188272141. The reversal of 188272133 is 331272881.

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

It is a cyclic number.

It is not a de Polignac number, because 188272133 - 2² = 188272129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 188272093 and 188272102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188272153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23228 + ... + 30266.

It is an arithmetic number, because the mean of its divisors is an integer number (26906880).

Almost surely, 2^188272133 is an apocalyptic number.

It is an amenable number.

188272133 is a deficient number, since it is larger than the sum of its proper divisors (26982907).

188272133 is an equidigital number, since it uses as much as digits as its factorization.

188272133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10867.

The product of its digits is 16128, while the sum is 35.

The square root of 188272133 is about 13721.2292816642. The cubic root of 188272133 is about 573.1417089537.

The spelling of 188272133 in words is "one hundred eighty-eight million, two hundred seventy-two thousand, one hundred thirty-three".