1313105405 has 16 divisors (see below), whose sum is σ = 1615810944. Its totient is φ = 1023865920.

The previous prime is 1313105309. The next prime is 1313105419. The reversal of 1313105405 is 5045013131.

It is not a de Polignac number, because 1313105405 - 2¹⁰ = 1313104381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 98435 + ... + 110975.

It is an arithmetic number, because the mean of its divisors is an integer number (100988184).

Almost surely, 2^1313105405 is an apocalyptic number.

It is an amenable number.

1313105405 is a deficient number, since it is larger than the sum of its proper divisors (302705539).

1313105405 is a wasteful number, since it uses less digits than its factorization.

1313105405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13076.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 1313105405 is about 36236.7962849919. The cubic root of 1313105405 is about 1095.0481008596.

Adding to 1313105405 its reverse (5045013131), we get a palindrome (6358118536).

The spelling of 1313105405 in words is "one billion, three hundred thirteen million, one hundred five thousand, four hundred five".