142243 has 4 divisors (see below), whose sum is σ = 143728. Its totient is φ = 140760.

The previous prime is 142237. The next prime is 142271. The reversal of 142243 is 342241.

142243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142243 - 2⁵ = 142211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 588 + ... + 793.

It is an arithmetic number, because the mean of its divisors is an integer number (35932).

2¹⁴²²⁴³ is an apocalyptic number.

142243 is a deficient number, since it is larger than the sum of its proper divisors (1485).

142243 is a wasteful number, since it uses less digits than its factorization.

142243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484.

The product of its digits is 192, while the sum is 16.

The square root of 142243 is about 377.1511633284. The cubic root of 142243 is about 52.2007770371.

Adding to 142243 its reverse (342241), we get a palindrome (484484).

The spelling of 142243 in words is "one hundred forty-two thousand, two hundred forty-three", and thus it is an iban number.