142242423 has 16 divisors (see below), whose sum is σ = 195225600. Its totient is φ = 92083680.

The previous prime is 142242377. The next prime is 142242433. The reversal of 142242423 is 324242241.

It is not a de Polignac number, because 142242423 - 2¹⁰ = 142241399 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142242393 and 142242402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142242433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9538 + ... + 19376.

It is an arithmetic number, because the mean of its divisors is an integer number (12201600).

Almost surely, 2^142242423 is an apocalyptic number.

142242423 is a deficient number, since it is larger than the sum of its proper divisors (52983177).

142242423 is an equidigital number, since it uses as much as digits as its factorization.

142242423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9982.

The product of its digits is 3072, while the sum is 24.

The square root of 142242423 is about 11926.5427932826. The cubic root of 142242423 is about 522.0070645394.

Adding to 142242423 its reverse (324242241), we get a palindrome (466484664).

The spelling of 142242423 in words is "one hundred forty-two million, two hundred forty-two thousand, four hundred twenty-three".