3112513640 has 64 divisors (see below), whose sum is σ = 7316438400. Its totient is φ = 1189441792.

The previous prime is 3112513627. The next prime is 3112513661. The reversal of 3112513640 is 463152113.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1068506 + ... + 1071414.

It is an arithmetic number, because the mean of its divisors is an integer number (114319350).

Almost surely, 2^3112513640 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 3112513640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3658219200).

3112513640 is an abundant number, since it is smaller than the sum of its proper divisors (4203924760).

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

3112513640 is a wasteful number, since it uses less digits than its factorization.

3112513640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4106 (or 4102 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 3112513640 is about 55789.9062555226. The cubic root of 3112513640 is about 1460.0590518431.

Adding to 3112513640 its reverse (463152113), we get a palindrome (3575665753).

The spelling of 3112513640 in words is "three billion, one hundred twelve million, five hundred thirteen thousand, six hundred forty".