142030423 has 4 divisors (see below), whose sum is σ = 142054560. Its totient is φ = 142006288.

The previous prime is 142030417. The next prime is 142030433. The reversal of 142030423 is 324030241.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 324030241 = 43 ⋅7535587.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142030423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142030423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142030403) 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, 3186 + ... + 17152.

It is an arithmetic number, because the mean of its divisors is an integer number (35513640).

Almost surely, 2^142030423 is an apocalyptic number.

142030423 is a deficient number, since it is larger than the sum of its proper divisors (24137).

142030423 is a wasteful number, since it uses less digits than its factorization.

142030423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24136.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 142030423 is about 11917.6517401710. The cubic root of 142030423 is about 521.7476001686.

Adding to 142030423 its reverse (324030241), we get a palindrome (466060664).

The spelling of 142030423 in words is "one hundred forty-two million, thirty thousand, four hundred twenty-three".