142383191 has 8 divisors (see below), whose sum is σ = 145910160. Its totient is φ = 138866112.

The previous prime is 142383181. The next prime is 142383193. The reversal of 142383191 is 191383241.

142383191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142383191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142383193) 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, 32741 + ... + 36833.

It is an arithmetic number, because the mean of its divisors is an integer number (18238770).

Almost surely, 2^142383191 is an apocalyptic number.

142383191 is a deficient number, since it is larger than the sum of its proper divisors (3526969).

142383191 is an equidigital number, since it uses as much as digits as its factorization.

142383191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4945.

The product of its digits is 5184, while the sum is 32.

The square root of 142383191 is about 11932.4427926557. The cubic root of 142383191 is about 522.1792064882.

Subtracting 142383191 from its reverse (191383241), we obtain a triangular number (49000050 = T₉₈₉₉).

The spelling of 142383191 in words is "one hundred forty-two million, three hundred eighty-three thousand, one hundred ninety-one".