1313513255 has 4 divisors (see below), whose sum is σ = 1576215912. Its totient is φ = 1050810600.

The previous prime is 1313513251. The next prime is 1313513287. The reversal of 1313513255 is 5523153131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5523153131 = 97 ⋅56939723.

It is not a de Polignac number, because 1313513255 - 2² = 1313513251 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 (1313513251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131351321 + ... + 131351330.

It is an arithmetic number, because the mean of its divisors is an integer number (394053978).

Almost surely, 2^1313513255 is an apocalyptic number.

1313513255 is a deficient number, since it is larger than the sum of its proper divisors (262702657).

1313513255 is an equidigital number, since it uses as much as digits as its factorization.

1313513255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262702656.

The product of its digits is 6750, while the sum is 29.

The square root of 1313513255 is about 36242.4234151084. The cubic root of 1313513255 is about 1095.1614629539.

Adding to 1313513255 its reverse (5523153131), we get a palindrome (6836666386).

The spelling of 1313513255 in words is "one billion, three hundred thirteen million, five hundred thirteen thousand, two hundred fifty-five".