142985845 has 16 divisors (see below), whose sum is σ = 173638080. Its totient is φ = 113027200.

The previous prime is 142985807. The next prime is 142985867. The reversal of 142985845 is 548589241.

It is not a de Polignac number, because 142985845 - 2⁹ = 142985333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142985795 and 142985804.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274185 + ... + 274705.

It is an arithmetic number, because the mean of its divisors is an integer number (10852380).

Almost surely, 2^142985845 is an apocalyptic number.

It is an amenable number.

142985845 is a deficient number, since it is larger than the sum of its proper divisors (30652235).

142985845 is a wasteful number, since it uses less digits than its factorization.

142985845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076.

The product of its digits is 460800, while the sum is 46.

The square root of 142985845 is about 11957.6688781719. The cubic root of 142985845 is about 522.9148982831.

The spelling of 142985845 in words is "one hundred forty-two million, nine hundred eighty-five thousand, eight hundred forty-five".