143842679 has 2 divisors, whose sum is σ = 143842680. Its totient is φ = 143842678.

The previous prime is 143842609. The next prime is 143842681. The reversal of 143842679 is 976248341.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143842679 is a prime.

Together with 143842681, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143842609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71921339 + 71921340.

It is an arithmetic number, because the mean of its divisors is an integer number (71921340).

Almost surely, 2^143842679 is an apocalyptic number.

143842679 is a deficient number, since it is larger than the sum of its proper divisors (1).

143842679 is an equidigital number, since it uses as much as digits as its factorization.

143842679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 44.

The square root of 143842679 is about 11993.4431669975. The cubic root of 143842679 is about 523.9573307427.

The spelling of 143842679 in words is "one hundred forty-three million, eight hundred forty-two thousand, six hundred seventy-nine".