1310256325 has 18 divisors (see below), whose sum is σ = 1889979666. Its totient is φ = 898460640.

The previous prime is 1310256293. The next prime is 1310256329. The reversal of 1310256325 is 5236520131.

It can be written as a sum of positive squares in 3 ways, for example, as 446307876 + 863948449 = 21126^2 + 29393^2 .

It is not a de Polignac number, because 1310256325 - 2⁵ = 1310256293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1310256293 and 1310256302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310256329) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 533574 + ... + 536023.

Almost surely, 2^1310256325 is an apocalyptic number.

It is an amenable number.

1310256325 is a deficient number, since it is larger than the sum of its proper divisors (579723341).

1310256325 is a wasteful number, since it uses less digits than its factorization.

1310256325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069621 (or 1069609 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 1310256325 is about 36197.4629635835. The cubic root of 1310256325 is about 1094.2555422972.

Adding to 1310256325 its reverse (5236520131), we get a palindrome (6546776456).

The spelling of 1310256325 in words is "one billion, three hundred ten million, two hundred fifty-six thousand, three hundred twenty-five".