611423543 has 2 divisors, whose sum is σ = 611423544. Its totient is φ = 611423542.

The previous prime is 611423539. The next prime is 611423597. The reversal of 611423543 is 345324116.

611423543 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 611423543 - 2² = 611423539 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (611323543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305711771 + 305711772.

It is an arithmetic number, because the mean of its divisors is an integer number (305711772).

Almost surely, 2^611423543 is an apocalyptic number.

611423543 is a deficient number, since it is larger than the sum of its proper divisors (1).

611423543 is an equidigital number, since it uses as much as digits as its factorization.

611423543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 29.

The square root of 611423543 is about 24726.9800622721. The cubic root of 611423543 is about 848.7518210706.

Adding to 611423543 its reverse (345324116), we get a palindrome (956747659).

The spelling of 611423543 in words is "six hundred eleven million, four hundred twenty-three thousand, five hundred forty-three".