1845841 has 2 divisors, whose sum is σ = 1845842. Its totient is φ = 1845840.

The previous prime is 1845829. The next prime is 1845881. The reversal of 1845841 is 1485481.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1615441 + 230400 = 1271^2 + 480^2 .

It is a cyclic number.

It is not a de Polignac number, because 1845841 - 2⁷ = 1845713 is a prime.

It is not a weakly prime, because it can be changed into another prime (1845881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 922920 + 922921.

It is an arithmetic number, because the mean of its divisors is an integer number (922921).

2^1845841 is an apocalyptic number.

It is an amenable number.

1845841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1845841 is an equidigital number, since it uses as much as digits as its factorization.

1845841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5120, while the sum is 31.

The square root of 1845841 is about 1358.6173118285. The cubic root of 1845841 is about 122.6680409358.

The spelling of 1845841 in words is "one million, eight hundred forty-five thousand, eight hundred forty-one".