142836793 has 4 divisors (see below), whose sum is σ = 155821968. Its totient is φ = 129851620.

The previous prime is 142836779. The next prime is 142836797. The reversal of 142836793 is 397638241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142836793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142836797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6492571 + ... + 6492592.

It is an arithmetic number, because the mean of its divisors is an integer number (38955492).

Almost surely, 2^142836793 is an apocalyptic number.

It is an amenable number.

142836793 is a deficient number, since it is larger than the sum of its proper divisors (12985175).

142836793 is a wasteful number, since it uses less digits than its factorization.

142836793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12985174.

The product of its digits is 217728, while the sum is 43.

The square root of 142836793 is about 11951.4347674244. The cubic root of 142836793 is about 522.7331352798.

The spelling of 142836793 in words is "one hundred forty-two million, eight hundred thirty-six thousand, seven hundred ninety-three".