1230813 has 12 divisors (see below), whose sum is σ = 1790880. Its totient is φ = 814536.

The previous prime is 1230791. The next prime is 1230829. The reversal of 1230813 is 3180321.

It is not a de Polignac number, because 1230813 - 2⁹ = 1230301 is a prime.

It is a super-3 number, since 3×1230813³ = 5593678207838933391, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1048 + ... + 1886.

It is an arithmetic number, because the mean of its divisors is an integer number (149240).

2^1230813 is an apocalyptic number.

It is an amenable number.

1230813 is a deficient number, since it is larger than the sum of its proper divisors (560067).

1230813 is a wasteful number, since it uses less digits than its factorization.

1230813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008 (or 1005 counting only the distinct ones).

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

The square root of 1230813 is about 1109.4201188008. The cubic root of 1230813 is about 107.1677283214.

It can be divided in two parts, 12308 and 13, that added together give a palindrome (12321).

The spelling of 1230813 in words is "one million, two hundred thirty thousand, eight hundred thirteen".