186142 has 8 divisors (see below), whose sum is σ = 304632. Its totient is φ = 84600.

The previous prime is 186119. The next prime is 186149. The reversal of 186142 is 241681.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 8461 = 186142 / (1 + 8 + 6 + 1 + 4 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (186149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4209 + ... + 4252.

It is an arithmetic number, because the mean of its divisors is an integer number (38079).

2¹⁸⁶¹⁴² is an apocalyptic number.

186142 is a deficient number, since it is larger than the sum of its proper divisors (118490).

186142 is a wasteful number, since it uses less digits than its factorization.

186142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8474.

The product of its digits is 384, while the sum is 22.

The square root of 186142 is about 431.4417689561. The cubic root of 186142 is about 57.0971974542.

The spelling of 186142 in words is "one hundred eighty-six thousand, one hundred forty-two".