142131423 has 8 divisors (see below), whose sum is σ = 216581248. Its totient is φ = 81217944.

The previous prime is 142131397. The next prime is 142131427. The reversal of 142131423 is 324131241.

142131423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 142131423 - 2¹⁶ = 142065887 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 6768163 = 142131423 / (1 + 4 + 2 + 1 + 3 + 1 + 4 + 2 + 3).

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 142131423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142131427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3384061 + ... + 3384102.

It is an arithmetic number, because the mean of its divisors is an integer number (27072656).

Almost surely, 2^142131423 is an apocalyptic number.

142131423 is a deficient number, since it is larger than the sum of its proper divisors (74449825).

142131423 is an equidigital number, since it uses as much as digits as its factorization.

142131423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6768173.

The product of its digits is 576, while the sum is 21.

The square root of 142131423 is about 11921.8883990750. Note that the first 3 decimals coincide. The cubic root of 142131423 is about 521.8712450899.

Adding to 142131423 its reverse (324131241), we get a palindrome (466262664).

The spelling of 142131423 in words is "one hundred forty-two million, one hundred thirty-one thousand, four hundred twenty-three".