1312056504 has 96 divisors (see below), whose sum is σ = 3891888000. Its totient is φ = 396018240.

The previous prime is 1312056497. The next prime is 1312056517. The reversal of 1312056504 is 4056502131.

1312056504 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 0 + 5 + 650 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 205147 + ... + 211445.

It is an arithmetic number, because the mean of its divisors is an integer number (40540500).

Almost surely, 2^1312056504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1312056504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1945944000).

1312056504 is an abundant number, since it is smaller than the sum of its proper divisors (2579831496).

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

1312056504 is a wasteful number, since it uses less digits than its factorization.

1312056504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6585 (or 6578 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1312056504 is about 36222.3205220207. The cubic root of 1312056504 is about 1094.7564504939.

Adding to 1312056504 its reverse (4056502131), we get a palindrome (5368558635).

The spelling of 1312056504 in words is "one billion, three hundred twelve million, fifty-six thousand, five hundred four".