1300823 has 4 divisors (see below), whose sum is σ = 1377360. Its totient is φ = 1224288.

The previous prime is 1300813. The next prime is 1300829. The reversal of 1300823 is 3280031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1300823 - 2¹² = 1296727 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 76519 = 1300823 / (1 + 3 + 0 + 0 + 8 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1300829) 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 3 ways as a sum of consecutive naturals, for example, 38243 + ... + 38276.

It is an arithmetic number, because the mean of its divisors is an integer number (344340).

2^1300823 is an apocalyptic number.

1300823 is a deficient number, since it is larger than the sum of its proper divisors (76537).

1300823 is an equidigital number, since it uses as much as digits as its factorization.

1300823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76536.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1300823 is about 1140.5362773713. The cubic root of 1300823 is about 109.1623146359.

Adding to 1300823 its reverse (3280031), we get a palindrome (4580854).

It can be divided in two parts, 13008 and 23, that added together give a palindrome (13031).

The spelling of 1300823 in words is "one million, three hundred thousand, eight hundred twenty-three".