1310255513 has 32 divisors (see below), whose sum is σ = 1604800512. Its totient is φ = 1045598400.

The previous prime is 1310255503. The next prime is 1310255549. The reversal of 1310255513 is 3155520131.

It is a happy number.

It is not a de Polignac number, because 1310255513 - 2⁴ = 1310255497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1310255503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 948083 + ... + 949463.

It is an arithmetic number, because the mean of its divisors is an integer number (50150016).

Almost surely, 2^1310255513 is an apocalyptic number.

It is an amenable number.

1310255513 is a deficient number, since it is larger than the sum of its proper divisors (294544999).

1310255513 is a wasteful number, since it uses less digits than its factorization.

1310255513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 1310255513 is about 36197.4517473261. The cubic root of 1310255513 is about 1094.2553162510.

Adding to 1310255513 its reverse (3155520131), we get a palindrome (4465775644).

The spelling of 1310255513 in words is "one billion, three hundred ten million, two hundred fifty-five thousand, five hundred thirteen".