613664543 has 2 divisors, whose sum is σ = 613664544. Its totient is φ = 613664542.

The previous prime is 613664533. The next prime is 613664551. The reversal of 613664543 is 345466316.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 613664543 - 2²⁰ = 612615967 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 613664497 and 613664506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (613664533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306832271 + 306832272.

It is an arithmetic number, because the mean of its divisors is an integer number (306832272).

Almost surely, 2^613664543 is an apocalyptic number.

613664543 is a deficient number, since it is larger than the sum of its proper divisors (1).

613664543 is an equidigital number, since it uses as much as digits as its factorization.

613664543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 38.

The square root of 613664543 is about 24772.2534905487. The cubic root of 613664543 is about 849.7875099755.

The spelling of 613664543 in words is "six hundred thirteen million, six hundred sixty-four thousand, five hundred forty-three".