1841594009 has 2 divisors, whose sum is σ = 1841594010. Its totient is φ = 1841594008.

The previous prime is 1841593961. The next prime is 1841594011. The reversal of 1841594009 is 9004951481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1531939600 + 309654409 = 39140^2 + 17597^2 .

It is a cyclic number.

It is not a de Polignac number, because 1841594009 - 2¹² = 1841589913 is a prime.

Together with 1841594011, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1841594099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 920797004 + 920797005.

It is an arithmetic number, because the mean of its divisors is an integer number (920797005).

Almost surely, 2^1841594009 is an apocalyptic number.

It is an amenable number.

1841594009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1841594009 is an equidigital number, since it uses as much as digits as its factorization.

1841594009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 1841594009 is about 42913.7974199441. The cubic root of 1841594009 is about 1225.7388870671.

The spelling of 1841594009 in words is "one billion, eight hundred forty-one million, five hundred ninety-four thousand, nine".