1801363 has 2 divisors, whose sum is σ = 1801364. Its totient is φ = 1801362.

The previous prime is 1801361. The next prime is 1801403. The reversal of 1801363 is 3631081.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1801363 - 2¹ = 1801361 is a prime.

Together with 1801361, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1801361) 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, 900681 + 900682.

It is an arithmetic number, because the mean of its divisors is an integer number (900682).

2^1801363 is an apocalyptic number.

1801363 is a deficient number, since it is larger than the sum of its proper divisors (1).

1801363 is an equidigital number, since it uses as much as digits as its factorization.

1801363 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1801363 is about 1342.1486504855. The cubic root of 1801363 is about 121.6747360216.

The spelling of 1801363 in words is "one million, eight hundred one thousand, three hundred sixty-three".