1801063 has 4 divisors (see below), whose sum is σ = 1964808. Its totient is φ = 1637320.

The previous prime is 1801039. The next prime is 1801073. The reversal of 1801063 is 3601081.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1801063 - 2⁹ = 1800551 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 1801063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1801003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81856 + ... + 81877.

It is an arithmetic number, because the mean of its divisors is an integer number (491202).

2^1801063 is an apocalyptic number.

1801063 is a deficient number, since it is larger than the sum of its proper divisors (163745).

1801063 is a wasteful number, since it uses less digits than its factorization.

1801063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163744.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1801063 is about 1342.0368847390. The cubic root of 1801063 is about 121.6679810538.

The spelling of 1801063 in words is "one million, eight hundred one thousand, sixty-three".