1813063 has 4 divisors (see below), whose sum is σ = 2072080. Its totient is φ = 1554048.

The previous prime is 1813039. The next prime is 1813073. The reversal of 1813063 is 3603181.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3603181 = 1291 ⋅2791.

It is a cyclic number.

It is not a de Polignac number, because 1813063 - 2¹³ = 1804871 is a prime.

It is an Ulam number.

It is the 1347-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1813003) by changing a digit.

It is a nontrivial repunit in base 1346.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129498 + ... + 129511.

It is an arithmetic number, because the mean of its divisors is an integer number (518020).

2^1813063 is an apocalyptic number.

1813063 is a deficient number, since it is larger than the sum of its proper divisors (259017).

1813063 is an equidigital number, since it uses as much as digits as its factorization.

1813063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259016.

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

The square root of 1813063 is about 1346.5002784998. The cubic root of 1813063 is about 121.9375968598.

The spelling of 1813063 in words is "one million, eight hundred thirteen thousand, sixty-three".