142140305507 has 8 divisors (see below), whose sum is σ = 142828868112. Its totient is φ = 141451884000.

The previous prime is 142140305477. The next prime is 142140305519. The reversal of 142140305507 is 705503041241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142140305507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142140305207) 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, 2383757 + ... + 2442657.

It is an arithmetic number, because the mean of its divisors is an integer number (17853608514).

Almost surely, 2^142140305507 is an apocalyptic number.

142140305507 is a deficient number, since it is larger than the sum of its proper divisors (688562605).

142140305507 is a wasteful number, since it uses less digits than its factorization.

142140305507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70549.

The product of its (nonzero) digits is 16800, while the sum is 32.

Adding to 142140305507 its reverse (705503041241), we get a palindrome (847643346748).

The spelling of 142140305507 in words is "one hundred forty-two billion, one hundred forty million, three hundred five thousand, five hundred seven".