1313103545 has 32 divisors (see below), whose sum is σ = 1845371808. Its totient is φ = 887943168.

The previous prime is 1313103529. The next prime is 1313103551. The reversal of 1313103545 is 5453013131.

It can be written as a sum of positive squares in 16 ways, for example, as 439782841 + 873320704 = 20971^2 + 29552^2 .

It is not a de Polignac number, because 1313103545 - 2⁴ = 1313103529 is a prime.

It is a Duffinian number.

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, 24827 + ... + 56943.

It is an arithmetic number, because the mean of its divisors is an integer number (57667869).

Almost surely, 2^1313103545 is an apocalyptic number.

It is an amenable number.

1313103545 is a deficient number, since it is larger than the sum of its proper divisors (532268263).

1313103545 is a wasteful number, since it uses less digits than its factorization.

1313103545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32189.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 1313103545 is about 36236.7706204623. The cubic root of 1313103545 is about 1095.0475838179.

Adding to 1313103545 its reverse (5453013131), we get a palindrome (6766116676).

The spelling of 1313103545 in words is "one billion, three hundred thirteen million, one hundred three thousand, five hundred forty-five".