1845715241 has 2 divisors, whose sum is σ = 1845715242. Its totient is φ = 1845715240.

The previous prime is 1845715213. The next prime is 1845715243. The reversal of 1845715241 is 1425175481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1726818025 + 118897216 = 41555^2 + 10904^2 .

It is an emirp because it is prime and its reverse (1425175481) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1845715241 - 2¹⁰ = 1845714217 is a prime.

Together with 1845715243, 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 = 1845715195 and 1845715204.

It is not a weakly prime, because it can be changed into another prime (1845715243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 922857620 + 922857621.

It is an arithmetic number, because the mean of its divisors is an integer number (922857621).

Almost surely, 2^1845715241 is an apocalyptic number.

It is an amenable number.

1845715241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1845715241 is an equidigital number, since it uses as much as digits as its factorization.

1845715241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 44800, while the sum is 38.

The square root of 1845715241 is about 42961.7881494707. The cubic root of 1845715241 is about 1226.6525504030.

The spelling of 1845715241 in words is "one billion, eight hundred forty-five million, seven hundred fifteen thousand, two hundred forty-one".