1313025305 has 32 divisors (see below), whose sum is σ = 1740364800. Its totient is φ = 947116800.

The previous prime is 1313025289. The next prime is 1313025319. The reversal of 1313025305 is 5035203131.

It is not a de Polignac number, because 1313025305 - 2⁴ = 1313025289 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175991 + ... + 183299.

It is an arithmetic number, because the mean of its divisors is an integer number (54386400).

Almost surely, 2^1313025305 is an apocalyptic number.

It is an amenable number.

1313025305 is a deficient number, since it is larger than the sum of its proper divisors (427339495).

1313025305 is a wasteful number, since it uses less digits than its factorization.

1313025305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7425.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 1313025305 is about 36235.6910379808. The cubic root of 1313025305 is about 1095.0258342702.

Adding to 1313025305 its reverse (5035203131), we get a palindrome (6348228436).

The spelling of 1313025305 in words is "one billion, three hundred thirteen million, twenty-five thousand, three hundred five".