142640316 has 72 divisors (see below), whose sum is σ = 443780064. Its totient is φ = 37618560.

The previous prime is 142640287. The next prime is 142640327. The reversal of 142640316 is 613046241.

142640316 is a `hidden beast` number, since 1 + 4 + 2 + 640 + 3 + 16 = 666.

142640316 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 142640316.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18495 + ... + 25046.

It is an arithmetic number, because the mean of its divisors is an integer number (6163612).

Almost surely, 2^142640316 is an apocalyptic number.

It is an amenable number.

142640316 is an abundant number, since it is smaller than the sum of its proper divisors (301139748).

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

142640316 is a wasteful number, since it uses less digits than its factorization.

142640316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43571 (or 43566 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 142640316 is about 11943.2121307461. The cubic root of 142640316 is about 522.4933460688.

Adding to 142640316 its reverse (613046241), we get a palindrome (755686557).

The spelling of 142640316 in words is "one hundred forty-two million, six hundred forty thousand, three hundred sixteen".