616775143 has 2 divisors, whose sum is σ = 616775144. Its totient is φ = 616775142.

The previous prime is 616775077. The next prime is 616775197. The reversal of 616775143 is 341577616.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-616775143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 616775096 and 616775105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616575143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308387571 + 308387572.

It is an arithmetic number, because the mean of its divisors is an integer number (308387572).

Almost surely, 2^616775143 is an apocalyptic number.

616775143 is a deficient number, since it is larger than the sum of its proper divisors (1).

616775143 is an equidigital number, since it uses as much as digits as its factorization.

616775143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 40.

The square root of 616775143 is about 24834.9580833147. The cubic root of 616775143 is about 851.2209181293.

The spelling of 616775143 in words is "six hundred sixteen million, seven hundred seventy-five thousand, one hundred forty-three".