142506306 has 24 divisors (see below), whose sum is σ = 309321324. Its totient is φ = 47416320.

The previous prime is 142506281. The next prime is 142506317. The reversal of 142506306 is 603605241.

142506306 is a `hidden beast` number, since 1 + 4 + 25 + 0 + 630 + 6 = 666.

142506306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 137100681 + 5405625 = 11709^2 + 2325^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 142506306.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3526 + ... + 17246.

Almost surely, 2^142506306 is an apocalyptic number.

142506306 is an abundant number, since it is smaller than the sum of its proper divisors (166815018).

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

142506306 is a wasteful number, since it uses less digits than its factorization.

142506306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14306 (or 14303 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 142506306 is about 11937.6005126659. The cubic root of 142506306 is about 522.3296680046.

The spelling of 142506306 in words is "one hundred forty-two million, five hundred six thousand, three hundred six".