561383143 has 2 divisors, whose sum is σ = 561383144. Its totient is φ = 561383142.

The previous prime is 561383107. The next prime is 561383167. The reversal of 561383143 is 341383165.

561383143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 561383143 - 2⁹ = 561382631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 561383099 and 561383108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (561387143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280691571 + 280691572.

It is an arithmetic number, because the mean of its divisors is an integer number (280691572).

Almost surely, 2^561383143 is an apocalyptic number.

561383143 is a deficient number, since it is larger than the sum of its proper divisors (1).

561383143 is an equidigital number, since it uses as much as digits as its factorization.

561383143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 34.

The square root of 561383143 is about 23693.5253392145. The cubic root of 561383143 is about 824.9351123744.

The spelling of 561383143 in words is "five hundred sixty-one million, three hundred eighty-three thousand, one hundred forty-three".