186242133 has 32 divisors (see below), whose sum is σ = 310302720. Its totient is φ = 96528960.

The previous prime is 186242117. The next prime is 186242143. The reversal of 186242133 is 331242681.

186242133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 186242133 - 2⁴ = 186242117 is a prime.

It is a super-2 number, since 2×186242133² = 69372264208779378, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 186242133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (186242113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167383 + ... + 168491.

It is an arithmetic number, because the mean of its divisors is an integer number (9696960).

Almost surely, 2^186242133 is an apocalyptic number.

It is an amenable number.

186242133 is a deficient number, since it is larger than the sum of its proper divisors (124060587).

186242133 is a wasteful number, since it uses less digits than its factorization.

186242133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857.

The product of its digits is 6912, while the sum is 30.

The square root of 186242133 is about 13647.0558363333. The cubic root of 186242133 is about 571.0743388440.

The spelling of 186242133 in words is "one hundred eighty-six million, two hundred forty-two thousand, one hundred thirty-three".