142501424 has 20 divisors (see below), whose sum is σ = 297335136. Its totient is φ = 65769792.

The previous prime is 142501421. The next prime is 142501453. The reversal of 142501424 is 424105241.

It is a self number, because there is not a number n which added to its sum of digits gives 142501424.

It is not an unprimeable number, because it can be changed into a prime (142501421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342344 + ... + 342759.

Almost surely, 2^142501424 is an apocalyptic number.

It is an amenable number.

142501424 is an abundant number, since it is smaller than the sum of its proper divisors (154833712).

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

142501424 is a wasteful number, since it uses less digits than its factorization.

142501424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685124 (or 685118 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 142501424 is about 11937.3960309609. The cubic root of 142501424 is about 522.3237032568.

Adding to 142501424 its reverse (424105241), we get a palindrome (566606665).

The spelling of 142501424 in words is "one hundred forty-two million, five hundred one thousand, four hundred twenty-four".