142505020424 has 32 divisors (see below), whose sum is σ = 288774604440. Its totient is φ = 65537472000.

The previous prime is 142505020423. The next prime is 142505020429. The reversal of 142505020424 is 424020505241.

It can be written as a sum of positive squares in 4 ways, for example, as 77233968100 + 65271052324 = 277910^2 + 255482^2 .

It is not an unprimeable number, because it can be changed into a prime (142505020421) 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, 2408927 + ... + 2467374.

Almost surely, 2^142505020424 is an apocalyptic number.

It is an amenable number.

142505020424 is an abundant number, since it is smaller than the sum of its proper divisors (146269584016).

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

142505020424 is a wasteful number, since it uses less digits than its factorization.

142505020424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4876601 (or 4876597 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 142505020424 its reverse (424020505241), we get a palindrome (566525525665).

The spelling of 142505020424 in words is "one hundred forty-two billion, five hundred five million, twenty thousand, four hundred twenty-four".