143000639 has 2 divisors, whose sum is σ = 143000640. Its totient is φ = 143000638.

The previous prime is 143000633. The next prime is 143000647. The reversal of 143000639 is 936000341.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143000639 is a prime.

It is a Sophie Germain prime.

It is equal to p_8072081 and since 143000639 and 8072081 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143000633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71500319 + 71500320.

It is an arithmetic number, because the mean of its divisors is an integer number (71500320).

Almost surely, 2^143000639 is an apocalyptic number.

143000639 is a deficient number, since it is larger than the sum of its proper divisors (1).

143000639 is an equidigital number, since it uses as much as digits as its factorization.

143000639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 143000639 is about 11958.2874610038. The cubic root of 143000639 is about 522.9329320874.

The spelling of 143000639 in words is "one hundred forty-three million, six hundred thirty-nine", and thus it is an aban number.