142445143 has 2 divisors, whose sum is σ = 142445144. Its totient is φ = 142445142.

The previous prime is 142445117. The next prime is 142445207. The reversal of 142445143 is 341544241.

It is a weak prime.

It is an emirp because it is prime and its reverse (341544241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142445143 - 2¹⁷ = 142314071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142440143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71222571 + 71222572.

It is an arithmetic number, because the mean of its divisors is an integer number (71222572).

Almost surely, 2^142445143 is an apocalyptic number.

142445143 is a deficient number, since it is larger than the sum of its proper divisors (1).

142445143 is an equidigital number, since it uses as much as digits as its factorization.

142445143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7680, while the sum is 28.

The square root of 142445143 is about 11935.0384582539. The cubic root of 142445143 is about 522.2549302100.

Adding to 142445143 its reverse (341544241), we get a palindrome (483989384).

The spelling of 142445143 in words is "one hundred forty-two million, four hundred forty-five thousand, one hundred forty-three".