118142 has 8 divisors (see below), whose sum is σ = 186600. Its totient is φ = 55944.

The previous prime is 118127. The next prime is 118147. The reversal of 118142 is 241811.

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

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 118142.

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 118142.

It is not an unprimeable number, because it can be changed into a prime (118147) by changing a digit.

118142 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1517 + ... + 1592.

It is an arithmetic number, because the mean of its divisors is an integer number (23325).

2¹¹⁸¹⁴² is an apocalyptic number.

118142 is a deficient number, since it is larger than the sum of its proper divisors (68458).

118142 is a wasteful number, since it uses less digits than its factorization.

118142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3130.

The product of its digits is 64, while the sum is 17.

The square root of 118142 is about 343.7179075928. The cubic root of 118142 is about 49.0683483231.

Adding to 118142 its reverse (241811), we get a palindrome (359953).

The spelling of 118142 in words is "one hundred eighteen thousand, one hundred forty-two".