1813333213 has 8 divisors (see below), whose sum is σ = 1841953536. Its totient is φ = 1784815200.

The previous prime is 1813333211. The next prime is 1813333279. The reversal of 1813333213 is 3123333181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1813333213 - 2¹ = 1813333211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1813333211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10548 + ... + 61138.

It is an arithmetic number, because the mean of its divisors is an integer number (230244192).

Almost surely, 2^1813333213 is an apocalyptic number.

It is an amenable number.

1813333213 is a deficient number, since it is larger than the sum of its proper divisors (28620323).

1813333213 is an equidigital number, since it uses as much as digits as its factorization.

1813333213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51155.

The product of its digits is 3888, while the sum is 28.

The square root of 1813333213 is about 42583.2503808716. The cubic root of 1813333213 is about 1219.4365428621.

Adding to 1813333213 its reverse (3123333181), we get a palindrome (4936666394).

The spelling of 1813333213 in words is "one billion, eight hundred thirteen million, three hundred thirty-three thousand, two hundred thirteen".