1305323 has 4 divisors (see below), whose sum is σ = 1340640. Its totient is φ = 1270008.

The previous prime is 1305307. The next prime is 1305371. The reversal of 1305323 is 3235031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3235031 = 659 ⋅4909.

It is a cyclic number.

It is not a de Polignac number, because 1305323 - 2⁴ = 1305307 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1305373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17603 + ... + 17676.

It is an arithmetic number, because the mean of its divisors is an integer number (335160).

2^1305323 is an apocalyptic number.

1305323 is a deficient number, since it is larger than the sum of its proper divisors (35317).

1305323 is an equidigital number, since it uses as much as digits as its factorization.

1305323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35316.

The product of its (nonzero) digits is 270, while the sum is 17.

The square root of 1305323 is about 1142.5073303922. The cubic root of 1305323 is about 109.2880465908.

The spelling of 1305323 in words is "one million, three hundred five thousand, three hundred twenty-three".