1304140535 has 4 divisors (see below), whose sum is σ = 1564968648. Its totient is φ = 1043312424.

The previous prime is 1304140531. The next prime is 1304140597. The reversal of 1304140535 is 5350414031.

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 1304140535 - 2² = 1304140531 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 (1304140531) 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, 130414049 + ... + 130414058.

It is an arithmetic number, because the mean of its divisors is an integer number (391242162).

Almost surely, 2^1304140535 is an apocalyptic number.

1304140535 is a deficient number, since it is larger than the sum of its proper divisors (260828113).

1304140535 is an equidigital number, since it uses as much as digits as its factorization.

1304140535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260828112.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1304140535 is about 36112.8859965525. The cubic root of 1304140535 is about 1092.5503603028.

Adding to 1304140535 its reverse (5350414031), we get a palindrome (6654554566).

The spelling of 1304140535 in words is "one billion, three hundred four million, one hundred forty thousand, five hundred thirty-five".