1304401045 has 4 divisors (see below), whose sum is σ = 1565281260. Its totient is φ = 1043520832.

The previous prime is 1304401039. The next prime is 1304401061. The reversal of 1304401045 is 5401044031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 911013489 + 393387556 = 30183^2 + 19834^2 .

It is a cyclic number.

It is not a de Polignac number, because 1304401045 - 2⁵ = 1304401013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130440100 + ... + 130440109.

It is an arithmetic number, because the mean of its divisors is an integer number (391320315).

Almost surely, 2^1304401045 is an apocalyptic number.

It is an amenable number.

1304401045 is a deficient number, since it is larger than the sum of its proper divisors (260880215).

1304401045 is an equidigital number, since it uses as much as digits as its factorization.

1304401045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260880214.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1304401045 is about 36116.4927007039. The cubic root of 1304401045 is about 1092.6231033182.

Adding to 1304401045 its reverse (5401044031), we get a palindrome (6705445076).

The spelling of 1304401045 in words is "one billion, three hundred four million, four hundred one thousand, forty-five".