609944143 has 2 divisors, whose sum is σ = 609944144. Its totient is φ = 609944142.

The previous prime is 609944141. The next prime is 609944171. The reversal of 609944143 is 341449906.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 609944143 - 2¹ = 609944141 is a prime.

Together with 609944141, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 609944096 and 609944105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (609944141) 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, 304972071 + 304972072.

It is an arithmetic number, because the mean of its divisors is an integer number (304972072).

Almost surely, 2^609944143 is an apocalyptic number.

609944143 is a deficient number, since it is larger than the sum of its proper divisors (1).

609944143 is an equidigital number, since it uses as much as digits as its factorization.

609944143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 609944143 is about 24697.0472526576. The cubic root of 609944143 is about 848.0667217697.

The spelling of 609944143 in words is "six hundred nine million, nine hundred forty-four thousand, one hundred forty-three".