1300812 has 12 divisors (see below), whose sum is σ = 3035256. Its totient is φ = 433600.

The previous prime is 1300781. The next prime is 1300813. The reversal of 1300812 is 2180031.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1300812² = 3384223718688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1300791 and 1300800.

It is not an unprimeable number, because it can be changed into a prime (1300813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54189 + ... + 54212.

It is an arithmetic number, because the mean of its divisors is an integer number (252938).

2^1300812 is an apocalyptic number.

1300812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1300812 is an abundant number, since it is smaller than the sum of its proper divisors (1734444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1300812 is a wasteful number, since it uses less digits than its factorization.

1300812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108408 (or 108406 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1300812 is about 1140.5314550682. The cubic root of 1300812 is about 109.1620069361.

Adding to 1300812 its reverse (2180031), we get a palindrome (3480843).

It can be divided in two parts, 1300 and 812, that added together give a palindrome (2112).

The spelling of 1300812 in words is "one million, three hundred thousand, eight hundred twelve".