142043983 has 2 divisors, whose sum is σ = 142043984. Its totient is φ = 142043982.

The previous prime is 142043971. The next prime is 142043989. The reversal of 142043983 is 389340241.

It is a strong prime.

It is an emirp because it is prime and its reverse (389340241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142043983 - 2¹³ = 142035791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142043989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71021991 + 71021992.

It is an arithmetic number, because the mean of its divisors is an integer number (71021992).

Almost surely, 2^142043983 is an apocalyptic number.

142043983 is a deficient number, since it is larger than the sum of its proper divisors (1).

142043983 is an equidigital number, since it uses as much as digits as its factorization.

142043983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 142043983 is about 11918.2206306143. The cubic root of 142043983 is about 521.7642038233.

The spelling of 142043983 in words is "one hundred forty-two million, forty-three thousand, nine hundred eighty-three".