142343983 has 2 divisors, whose sum is σ = 142343984. Its totient is φ = 142343982.

The previous prime is 142343969. The next prime is 142344071. The reversal of 142343983 is 389343241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142343983 - 2⁹ = 142343471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142343083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71171991 + 71171992.

It is an arithmetic number, because the mean of its divisors is an integer number (71171992).

Almost surely, 2^142343983 is an apocalyptic number.

142343983 is a deficient number, since it is larger than the sum of its proper divisors (1).

142343983 is an equidigital number, since it uses as much as digits as its factorization.

142343983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 37.

The square root of 142343983 is about 11930.7997636370. The cubic root of 142343983 is about 522.1312713311.

The spelling of 142343983 in words is "one hundred forty-two million, three hundred forty-three thousand, nine hundred eighty-three".