142343 has 4 divisors (see below), whose sum is σ = 143520. Its totient is φ = 141168.

The previous prime is 142327. The next prime is 142357. The reversal of 142343 is 343241.

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 142343 - 2⁴ = 142327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142543) by changing a digit.

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, 383 + ... + 656.

It is an arithmetic number, because the mean of its divisors is an integer number (35880).

2¹⁴²³⁴³ is an apocalyptic number.

142343 is a deficient number, since it is larger than the sum of its proper divisors (1177).

142343 is a wasteful number, since it uses less digits than its factorization.

142343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176.

The product of its digits is 288, while the sum is 17.

The square root of 142343 is about 377.2837128740. The cubic root of 142343 is about 52.2130069416.

Adding to 142343 its reverse (343241), we get a palindrome (485584).

The spelling of 142343 in words is "one hundred forty-two thousand, three hundred forty-three", and thus it is an iban number.