142683785 has 8 divisors (see below), whose sum is σ = 171654216. Its totient is φ = 113857920.

The previous prime is 142683781. The next prime is 142683823. The reversal of 142683785 is 587386241.

It can be written as a sum of positive squares in 4 ways, for example, as 287296 + 142396489 = 536^2 + 11933^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142683785 - 2² = 142683781 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142683781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33956 + ... + 37925.

It is an arithmetic number, because the mean of its divisors is an integer number (21456777).

Almost surely, 2^142683785 is an apocalyptic number.

It is an amenable number.

142683785 is a deficient number, since it is larger than the sum of its proper divisors (28970431).

142683785 is an equidigital number, since it uses as much as digits as its factorization.

142683785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72283.

The product of its digits is 322560, while the sum is 44.

The square root of 142683785 is about 11945.0318124315. The cubic root of 142683785 is about 522.5464165170.

The spelling of 142683785 in words is "one hundred forty-two million, six hundred eighty-three thousand, seven hundred eighty-five".