142342 has 4 divisors (see below), whose sum is σ = 213516. Its totient is φ = 71170.

The previous prime is 142327. The next prime is 142357. The reversal of 142342 is 243241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 243241 = 79 ⋅3079.

It is an interprime number because it is at equal distance from previous prime (142327) and next prime (142357).

It is a super-2 number, since 2×142342² = 40522489928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

142342 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35584 + ... + 35587.

It is an arithmetic number, because the mean of its divisors is an integer number (53379).

2¹⁴²³⁴² is an apocalyptic number.

142342 is a deficient number, since it is larger than the sum of its proper divisors (71174).

142342 is an equidigital number, since it uses as much as digits as its factorization.

142342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71173.

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

The square root of 142342 is about 377.2823876091. The cubic root of 142342 is about 52.2128846709.

Adding to 142342 its reverse (243241), we get a palindrome (385583).

It can be divided in two parts, 142 and 342, that added together give a palindrome (484).

The spelling of 142342 in words is "one hundred forty-two thousand, three hundred forty-two", and thus it is an iban number.