142542306 has 24 divisors (see below), whose sum is σ = 309217584. Its totient is φ = 47456280.

The previous prime is 142542277. The next prime is 142542319. The reversal of 142542306 is 603245241.

142542306 is a `hidden beast` number, since 1 + 425 + 4 + 230 + 6 = 666.

142542306 is digitally balanced in base 2, 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 142542306.

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, 11961 + ... + 20691.

It is an arithmetic number, because the mean of its divisors is an integer number (12884066).

Almost surely, 2^142542306 is an apocalyptic number.

142542306 is an abundant number, since it is smaller than the sum of its proper divisors (166675278).

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

142542306 is a wasteful number, since it uses less digits than its factorization.

142542306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9646 (or 9643 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 142542306 is about 11939.1082581573. The cubic root of 142542306 is about 522.3736480113.

Adding to 142542306 its reverse (603245241), we get a palindrome (745787547).

The spelling of 142542306 in words is "one hundred forty-two million, five hundred forty-two thousand, three hundred six".