142000 has 40 divisors (see below), whose sum is σ = 348192. Its totient is φ = 56000.

The previous prime is 141991. The next prime is 142007. The reversal of 142000 is 241.

It is a tau number, because it is divible by the number of its divisors (40).

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (142007) by changing a digit.

142000 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 7 ways as a sum of consecutive naturals, for example, 1965 + ... + 2035.

2¹⁴²⁰⁰⁰ is an apocalyptic number.

142000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174096).

142000 is an abundant number, since it is smaller than the sum of its proper divisors (206192).

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

142000 is an equidigital number, since it uses as much as digits as its factorization.

142000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 142000 is about 376.8288736283. The cubic root of 142000 is about 52.1710344628.

Adding to 142000 its reverse (241), we get a palindrome (142241).

The spelling of 142000 in words is "one hundred forty-two thousand", and thus it is an iban number.