143920945639 has 2 divisors, whose sum is σ = 143920945640. Its totient is φ = 143920945638.

The previous prime is 143920945621. The next prime is 143920945661. The reversal of 143920945639 is 936549029341.

143920945639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 143920945639 - 2²⁷ = 143786727911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 143920945639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143980945639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71960472819 + 71960472820.

It is an arithmetic number, because the mean of its divisors is an integer number (71960472820).

Almost surely, 2^143920945639 is an apocalyptic number.

143920945639 is a deficient number, since it is larger than the sum of its proper divisors (1).

143920945639 is an equidigital number, since it uses as much as digits as its factorization.

143920945639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6298560, while the sum is 55.

The spelling of 143920945639 in words is "one hundred forty-three billion, nine hundred twenty million, nine hundred forty-five thousand, six hundred thirty-nine".