1304135 has 12 divisors (see below), whose sum is σ = 1820808. Its totient is φ = 894096.

The previous prime is 1304131. The next prime is 1304137. The reversal of 1304135 is 5314031.

It is not a de Polignac number, because 1304135 - 2² = 1304131 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2417 + ... + 2906.

It is an arithmetic number, because the mean of its divisors is an integer number (151734).

2^1304135 is an apocalyptic number.

1304135 is a deficient number, since it is larger than the sum of its proper divisors (516673).

1304135 is an equidigital number, since it uses as much as digits as its factorization.

1304135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5342 (or 5335 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 1304135 is about 1141.9873029066. The cubic root of 1304135 is about 109.2548814643.

Adding to 1304135 its reverse (5314031), we get a palindrome (6618166).

The spelling of 1304135 in words is "one million, three hundred four thousand, one hundred thirty-five".