142429793 has 4 divisors (see below), whose sum is σ = 155377968. Its totient is φ = 129481620.

The previous prime is 142429783. The next prime is 142429801. The reversal of 142429793 is 397924241.

142429793 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-142429793 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142429793.

It is not an unprimeable number, because it can be changed into a prime (142429753) 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, 6474071 + ... + 6474092.

It is an arithmetic number, because the mean of its divisors is an integer number (38844492).

Almost surely, 2^142429793 is an apocalyptic number.

It is an amenable number.

142429793 is a deficient number, since it is larger than the sum of its proper divisors (12948175).

142429793 is a wasteful number, since it uses less digits than its factorization.

142429793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12948174.

The product of its digits is 108864, while the sum is 41.

The square root of 142429793 is about 11934.3953763900. The cubic root of 142429793 is about 522.2361700029.

The spelling of 142429793 in words is "one hundred forty-two million, four hundred twenty-nine thousand, seven hundred ninety-three".