618548141 has 2 divisors, whose sum is σ = 618548142. Its totient is φ = 618548140.

The previous prime is 618548123. The next prime is 618548143. The reversal of 618548141 is 141845816.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 616528900 + 2019241 = 24830^2 + 1421^2 .

It is a cyclic number.

It is not a de Polignac number, because 618548141 - 2¹⁰ = 618547117 is a prime.

Together with 618548143, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 618548095 and 618548104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (618548143) 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, 309274070 + 309274071.

It is an arithmetic number, because the mean of its divisors is an integer number (309274071).

Almost surely, 2^618548141 is an apocalyptic number.

It is an amenable number.

618548141 is a deficient number, since it is larger than the sum of its proper divisors (1).

618548141 is an equidigital number, since it uses as much as digits as its factorization.

618548141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30720, while the sum is 38.

The square root of 618548141 is about 24870.6280781166. The cubic root of 618548141 is about 852.0357851391.

The spelling of 618548141 in words is "six hundred eighteen million, five hundred forty-eight thousand, one hundred forty-one".