142142243 has 4 divisors (see below), whose sum is σ = 142352880. Its totient is φ = 141931608.

The previous prime is 142142233. The next prime is 142142257. The reversal of 142142243 is 342241241.

142142243 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, and also an emirpimes, since its reverse is a distinct semiprime: 342241241 = 59 ⋅5800699.

It is a cyclic number.

It is not a de Polignac number, because 142142243 - 2⁴ = 142142227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142142233) 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, 104303 + ... + 105656.

It is an arithmetic number, because the mean of its divisors is an integer number (35588220).

Almost surely, 2^142142243 is an apocalyptic number.

142142243 is a deficient number, since it is larger than the sum of its proper divisors (210637).

142142243 is an equidigital number, since it uses as much as digits as its factorization.

142142243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210636.

The product of its digits is 1536, while the sum is 23.

The square root of 142142243 is about 11922.3421776092. The cubic root of 142142243 is about 521.8844875371.

Adding to 142142243 its reverse (342241241), we get a palindrome (484383484).

The spelling of 142142243 in words is "one hundred forty-two million, one hundred forty-two thousand, two hundred forty-three".