188142 has 8 divisors (see below), whose sum is σ = 376296. Its totient is φ = 62712.

The previous prime is 188137. The next prime is 188143. The reversal of 188142 is 241881.

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

188142 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 188142.

It is not an unprimeable number, because it can be changed into a prime (188143) 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 3 ways as a sum of consecutive naturals, for example, 15673 + ... + 15684.

It is an arithmetic number, because the mean of its divisors is an integer number (47037).

2¹⁸⁸¹⁴² is an apocalyptic number.

188142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

188142 is a wasteful number, since it uses less digits than its factorization.

188142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31362.

The product of its digits is 512, while the sum is 24.

The square root of 188142 is about 433.7533861539. The cubic root of 188142 is about 57.3009627376.

The spelling of 188142 in words is "one hundred eighty-eight thousand, one hundred forty-two".