1304123 has 4 divisors (see below), whose sum is σ = 1360848. Its totient is φ = 1247400.

The previous prime is 1304113. The next prime is 1304129. The reversal of 1304123 is 3214031.

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 1304123 - 2⁸ = 1303867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1304098 and 1304107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304129) 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, 28328 + ... + 28373.

It is an arithmetic number, because the mean of its divisors is an integer number (340212).

2^1304123 is an apocalyptic number.

1304123 is a deficient number, since it is larger than the sum of its proper divisors (56725).

1304123 is an equidigital number, since it uses as much as digits as its factorization.

1304123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56724.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1304123 is about 1141.9820488957. The cubic root of 1304123 is about 109.2545463602.

Adding to 1304123 its reverse (3214031), we get a palindrome (4518154).

The spelling of 1304123 in words is "one million, three hundred four thousand, one hundred twenty-three".