1304999 has 4 divisors (see below), whose sum is σ = 1307664. Its totient is φ = 1302336.

The previous prime is 1304987. The next prime is 1305011. The reversal of 1304999 is 9994031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9994031 = 71 ⋅140761.

It is an interprime number because it is at equal distance from previous prime (1304987) and next prime (1305011).

It is a cyclic number.

It is not a de Polignac number, because 1304999 - 2⁴ = 1304983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304929) 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, 362 + ... + 1655.

It is an arithmetic number, because the mean of its divisors is an integer number (326916).

2^1304999 is an apocalyptic number.

1304999 is a deficient number, since it is larger than the sum of its proper divisors (2665).

1304999 is an equidigital number, since it uses as much as digits as its factorization.

1304999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2664.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 1304999 is about 1142.3655281914. The cubic root of 1304999 is about 109.2790035526.

The spelling of 1304999 in words is "one million, three hundred four thousand, nine hundred ninety-nine".