1814813 has 32 divisors (see below), whose sum is σ = 2553600. Its totient is φ = 1270080.

The previous prime is 1814809. The next prime is 1814819. The reversal of 1814813 is 3184181.

It is not a de Polignac number, because 1814813 - 2² = 1814809 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1814819) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49031 + ... + 49067.

It is an arithmetic number, because the mean of its divisors is an integer number (79800).

2^1814813 is an apocalyptic number.

1814813 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1814813 is a deficient number, since it is larger than the sum of its proper divisors (738787).

1814813 is a wasteful number, since it uses less digits than its factorization.

1814813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 68 counting only the distinct ones).

The product of its digits is 768, while the sum is 26.

The square root of 1814813 is about 1347.1499545336. The cubic root of 1814813 is about 121.9768163418.

Adding to 1814813 its reverse (3184181), we get a palindrome (4998994).

It can be divided in two parts, 181 and 4813, that added together give a palindrome (4994).

The spelling of 1814813 in words is "one million, eight hundred fourteen thousand, eight hundred thirteen".