142040423 has 8 divisors (see below), whose sum is σ = 171880992. Its totient is φ = 114587136.

The previous prime is 142040413. The next prime is 142040449. The reversal of 142040423 is 324040241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142040423 - 2¹⁰ = 142039399 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142040395 and 142040404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142040413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 596690 + ... + 596927.

It is an arithmetic number, because the mean of its divisors is an integer number (21485124).

Almost surely, 2^142040423 is an apocalyptic number.

142040423 is a deficient number, since it is larger than the sum of its proper divisors (29840569).

142040423 is a wasteful number, since it uses less digits than its factorization.

142040423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193641.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 142040423 is about 11918.0712785249. The cubic root of 142040423 is about 521.7598448540.

Adding to 142040423 its reverse (324040241), we get a palindrome (466080664).

The spelling of 142040423 in words is "one hundred forty-two million, forty thousand, four hundred twenty-three".