142983717 has 8 divisors (see below), whose sum is σ = 197219040. Its totient is φ = 92035440.

The previous prime is 142983703. The next prime is 142983733. The reversal of 142983717 is 717389241.

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

It is not a de Polignac number, because 142983717 - 2⁸ = 142983461 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142983767) 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, 821659 + ... + 821832.

It is an arithmetic number, because the mean of its divisors is an integer number (24652380).

Almost surely, 2^142983717 is an apocalyptic number.

It is an amenable number.

142983717 is a deficient number, since it is larger than the sum of its proper divisors (54235323).

142983717 is a wasteful number, since it uses less digits than its factorization.

142983717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643523.

The product of its digits is 84672, while the sum is 42.

The square root of 142983717 is about 11957.5798972869. The cubic root of 142983717 is about 522.9123041605.

The spelling of 142983717 in words is "one hundred forty-two million, nine hundred eighty-three thousand, seven hundred seventeen".