1813033241 has 2 divisors, whose sum is σ = 1813033242. Its totient is φ = 1813033240.

The previous prime is 1813033237. The next prime is 1813033273. The reversal of 1813033241 is 1423303181.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1453134400 + 359898841 = 38120^2 + 18971^2 .

It is a cyclic number.

It is not a de Polignac number, because 1813033241 - 2² = 1813033237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1813033241.

It is not a weakly prime, because it can be changed into another prime (1813033231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 906516620 + 906516621.

It is an arithmetic number, because the mean of its divisors is an integer number (906516621).

Almost surely, 2^1813033241 is an apocalyptic number.

It is an amenable number.

1813033241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1813033241 is an equidigital number, since it uses as much as digits as its factorization.

1813033241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1813033241 is about 42579.7280522081. The cubic root of 1813033241 is about 1219.3692970871.

The spelling of 1813033241 in words is "one billion, eight hundred thirteen million, thirty-three thousand, two hundred forty-one".