142131424 has 24 divisors (see below), whose sum is σ = 296282448. Its totient is φ = 66885120.

The previous prime is 142131397. The next prime is 142131427. The reversal of 142131424 is 424131241.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 142131395 and 142131404.

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 3 ways as a sum of consecutive naturals, for example, 130092 + ... + 131179.

It is an arithmetic number, because the mean of its divisors is an integer number (12345102).

Almost surely, 2^142131424 is an apocalyptic number.

It is an amenable number.

142131424 is an abundant number, since it is smaller than the sum of its proper divisors (154151024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142131424 is a wasteful number, since it uses less digits than its factorization.

142131424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261298 (or 261290 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 142131424 is about 11921.8884410147. Note that the first 3 decimals coincide. The cubic root of 142131424 is about 521.8712463139.

Adding to 142131424 its reverse (424131241), we get a palindrome (566262665).

The spelling of 142131424 in words is "one hundred forty-two million, one hundred thirty-one thousand, four hundred twenty-four".