142018 has 8 divisors (see below), whose sum is σ = 225612. Its totient is φ = 66816.

The previous prime is 142007. The next prime is 142019. The reversal of 142018 is 810241.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 120409 + 21609 = 347^2 + 147^2 .

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

It is a super-2 number, since 2×142018² = 40338224648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 141992 and 142010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142019) by changing a digit.

142018 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2055 + ... + 2122.

2¹⁴²⁰¹⁸ is an apocalyptic number.

142018 is a deficient number, since it is larger than the sum of its proper divisors (83594).

142018 is a wasteful number, since it uses less digits than its factorization.

142018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4196.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 142018 is about 376.8527563917. The cubic root of 142018 is about 52.1732387795.

Adding to 142018 its reverse (810241), we get a palindrome (952259).

The spelling of 142018 in words is "one hundred forty-two thousand, eighteen".