1309323 has 8 divisors (see below), whose sum is σ = 1848528. Its totient is φ = 821504.

The previous prime is 1309313. The next prime is 1309333. The reversal of 1309323 is 3239031.

It is an interprime number because it is at equal distance from previous prime (1309313) and next prime (1309333).

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 1309323 - 2⁵ = 1309291 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1309323.

It is not an unprimeable number, because it can be changed into a prime (1309313) 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 7 ways as a sum of consecutive naturals, for example, 12786 + ... + 12887.

It is an arithmetic number, because the mean of its divisors is an integer number (231066).

2^1309323 is an apocalyptic number.

1309323 is a deficient number, since it is larger than the sum of its proper divisors (539205).

1309323 is a wasteful number, since it uses less digits than its factorization.

1309323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25693.

The product of its (nonzero) digits is 486, while the sum is 21.

The square root of 1309323 is about 1144.2565271826. The cubic root of 1309323 is about 109.3995659650.

It can be divided in two parts, 130 and 9323, that added together give a triangular number (9453 = T₁₃₇).

The spelling of 1309323 in words is "one million, three hundred nine thousand, three hundred twenty-three".