142285738 has 16 divisors (see below), whose sum is σ = 246859200. Its totient is φ = 60244416.

The previous prime is 142285727. The next prime is 142285747. The reversal of 142285738 is 837582241.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 142285738.

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, 60063 + ... + 62386.

It is an arithmetic number, because the mean of its divisors is an integer number (15428700).

Almost surely, 2^142285738 is an apocalyptic number.

142285738 is a deficient number, since it is larger than the sum of its proper divisors (104573462).

142285738 is a wasteful number, since it uses less digits than its factorization.

142285738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122541.

The product of its digits is 107520, while the sum is 40.

The square root of 142285738 is about 11928.3585626858. The cubic root of 142285738 is about 522.0600455484.

The spelling of 142285738 in words is "one hundred forty-two million, two hundred eighty-five thousand, seven hundred thirty-eight".