1801323 has 12 divisors (see below), whose sum is σ = 2616120. Its totient is φ = 1194336.

The previous prime is 1801309. The next prime is 1801339. The reversal of 1801323 is 3231081.

It is not a de Polignac number, because 1801323 - 2⁶ = 1801259 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1801296 and 1801305.

It is not an unprimeable number, because it can be changed into a prime (1801363) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1668 + ... + 2526.

It is an arithmetic number, because the mean of its divisors is an integer number (218010).

2^1801323 is an apocalyptic number.

1801323 is a deficient number, since it is larger than the sum of its proper divisors (814797).

1801323 is a wasteful number, since it uses less digits than its factorization.

1801323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098 (or 1095 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1801323 is about 1342.1337489237. The cubic root of 1801323 is about 121.6738354025.

The spelling of 1801323 in words is "one million, eight hundred one thousand, three hundred twenty-three".