143398139 has 2 divisors, whose sum is σ = 143398140. Its totient is φ = 143398138.

The previous prime is 143398121. The next prime is 143398181. The reversal of 143398139 is 931893341.

It is a weak prime.

It is an emirp because it is prime and its reverse (931893341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 143398139 - 2²⁰ = 142349563 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 143398096 and 143398105.

It is not a weakly prime, because it can be changed into another prime (143398439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71699069 + 71699070.

It is an arithmetic number, because the mean of its divisors is an integer number (71699070).

Almost surely, 2^143398139 is an apocalyptic number.

143398139 is a deficient number, since it is larger than the sum of its proper divisors (1).

143398139 is an equidigital number, since it uses as much as digits as its factorization.

143398139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 41.

The square root of 143398139 is about 11974.8961999677. The cubic root of 143398139 is about 523.4170174190.

The spelling of 143398139 in words is "one hundred forty-three million, three hundred ninety-eight thousand, one hundred thirty-nine".