1304235 has 16 divisors (see below), whose sum is σ = 2318880. Its totient is φ = 695520.

The previous prime is 1304231. The next prime is 1304239. The reversal of 1304235 is 5324031.

It is an interprime number because it is at equal distance from previous prime (1304231) and next prime (1304239).

It is not a de Polignac number, because 1304235 - 2² = 1304231 is a prime.

It is an Ulam number.

1304235 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1304231) 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 15 ways as a sum of consecutive naturals, for example, 4696 + ... + 4965.

It is an arithmetic number, because the mean of its divisors is an integer number (144930).

2^1304235 is an apocalyptic number.

1304235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1304235 is a deficient number, since it is larger than the sum of its proper divisors (1014645).

1304235 is an equidigital number, since it uses as much as digits as its factorization.

1304235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9675 (or 9669 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 1304235 is about 1142.0310853913. The cubic root of 1304235 is about 109.2576739177.

Adding to 1304235 its reverse (5324031), we get a palindrome (6628266).

The spelling of 1304235 in words is "one million, three hundred four thousand, two hundred thirty-five".