143030389 has 2 divisors, whose sum is σ = 143030390. Its totient is φ = 143030388.

The previous prime is 143030383. The next prime is 143030413. The reversal of 143030389 is 983030341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104714289 + 38316100 = 10233^2 + 6190^2 .

It is a cyclic number.

It is not a de Polignac number, because 143030389 - 2⁵ = 143030357 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 143030389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143030383) 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, 71515194 + 71515195.

It is an arithmetic number, because the mean of its divisors is an integer number (71515195).

Almost surely, 2^143030389 is an apocalyptic number.

It is an amenable number.

143030389 is a deficient number, since it is larger than the sum of its proper divisors (1).

143030389 is an equidigital number, since it uses as much as digits as its factorization.

143030389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 143030389 is about 11959.5313035252. The cubic root of 143030389 is about 522.9691934079.

The spelling of 143030389 in words is "one hundred forty-three million, thirty thousand, three hundred eighty-nine".