142020850 has 12 divisors (see below), whose sum is σ = 264158874. Its totient is φ = 56808320.

The previous prime is 142020841. The next prime is 142020863. The reversal of 142020850 is 58020241.

142020850 is digitally balanced in base 3, 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 3 ways, for example, as 111957561 + 30063289 = 10581^2 + 5483^2 .

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 5 ways as a sum of consecutive naturals, for example, 1420159 + ... + 1420258.

Almost surely, 2^142020850 is an apocalyptic number.

142020850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142020850 is a deficient number, since it is larger than the sum of its proper divisors (122138024).

142020850 is a wasteful number, since it uses less digits than its factorization.

142020850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2840429 (or 2840424 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 142020850 is about 11917.2501022677. The cubic root of 142020850 is about 521.7358777927.

The spelling of 142020850 in words is "one hundred forty-two million, twenty thousand, eight hundred fifty".