142730556 has 24 divisors (see below), whose sum is σ = 333548880. Its totient is φ = 47503872.

The previous prime is 142730543. The next prime is 142730579. The reversal of 142730556 is 655037241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 661 + ... + 16908.

It is an arithmetic number, because the mean of its divisors is an integer number (13897870).

Almost surely, 2^142730556 is an apocalyptic number.

It is an amenable number.

142730556 is an abundant number, since it is smaller than the sum of its proper divisors (190818324).

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

142730556 is a wasteful number, since it uses less digits than its factorization.

142730556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18253 (or 18251 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 142730556 is about 11946.9894115631. The cubic root of 142730556 is about 522.6035062755.

Adding to 142730556 its reverse (655037241), we get a palindrome (797767797).

The spelling of 142730556 in words is "one hundred forty-two million, seven hundred thirty thousand, five hundred fifty-six".