1304544305136 has 80 divisors (see below), whose sum is σ = 3504535695360. Its totient is φ = 417655069440.

The previous prime is 1304544305131. The next prime is 1304544305137. The reversal of 1304544305136 is 6315034454031.

It is a junction number, because it is equal to n+sod(n) for n = 1304544305094 and 1304544305103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304544305131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2187460 + ... + 2719203.

It is an arithmetic number, because the mean of its divisors is an integer number (43806696192).

Almost surely, 2^{1304544305136} is an apocalyptic number.

1304544305136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1304544305136 is an abundant number, since it is smaller than the sum of its proper divisors (2199991390224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1304544305136 is a wasteful number, since it uses less digits than its factorization.

1304544305136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4906894 (or 4906888 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 39.

Adding to 1304544305136 its reverse (6315034454031), we get a palindrome (7619578759167).

The spelling of 1304544305136 in words is "one trillion, three hundred four billion, five hundred forty-four million, three hundred five thousand, one hundred thirty-six".