3145713320 has 64 divisors (see below), whose sum is σ = 7502809680. Its totient is φ = 1182908416.

The previous prime is 3145713287. The next prime is 3145713383. The reversal of 3145713320 is 233175413.

It can be written as a sum of positive squares in 8 ways, for example, as 2149805956 + 995907364 = 46366^2 + 31558^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 743852 + ... + 748068.

Almost surely, 2^3145713320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3145713320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3751404840).

3145713320 is an abundant number, since it is smaller than the sum of its proper divisors (4357096360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3145713320 is a wasteful number, since it uses less digits than its factorization.

3145713320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5342 (or 5338 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 3145713320 is about 56086.6590197705. The cubic root of 3145713320 is about 1465.2319512214.

Adding to 3145713320 its reverse (233175413), we get a palindrome (3378888733).

The spelling of 3145713320 in words is "three billion, one hundred forty-five million, seven hundred thirteen thousand, three hundred twenty".