142293 has 4 divisors (see below), whose sum is σ = 189728. Its totient is φ = 94860.

The previous prime is 142271. The next prime is 142297. The reversal of 142293 is 392241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 142293 - 2¹⁰ = 141269 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142297) 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, 23713 + ... + 23718.

It is an arithmetic number, because the mean of its divisors is an integer number (47432).

2¹⁴²²⁹³ is an apocalyptic number.

It is an amenable number.

142293 is a deficient number, since it is larger than the sum of its proper divisors (47435).

142293 is an equidigital number, since it uses as much as digits as its factorization.

142293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47434.

The product of its digits is 432, while the sum is 21.

The square root of 142293 is about 377.2174439233. The cubic root of 142293 is about 52.2068927056.

It can be divided in two parts, 142 and 293, that added together give a triangular number (435 = T₂₉).

The spelling of 142293 in words is "one hundred forty-two thousand, two hundred ninety-three".