1313265404 has 24 divisors (see below), whose sum is σ = 2510075568. Its totient is φ = 596240640.

The previous prime is 1313265403. The next prime is 1313265407. The reversal of 1313265404 is 4045623131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313265403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21572 + ... + 55604.

It is an arithmetic number, because the mean of its divisors is an integer number (104586482).

Almost surely, 2^1313265404 is an apocalyptic number.

It is an amenable number.

1313265404 is a deficient number, since it is larger than the sum of its proper divisors (1196810164).

1313265404 is a wasteful number, since it uses less digits than its factorization.

1313265404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34925 (or 34923 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1313265404 is about 36239.0039046329. The cubic root of 1313265404 is about 1095.0925754526.

Adding to 1313265404 its reverse (4045623131), we get a palindrome (5358888535).

The spelling of 1313265404 in words is "one billion, three hundred thirteen million, two hundred sixty-five thousand, four hundred four".