3112540540 has 72 divisors (see below), whose sum is σ = 7056035280. Its totient is φ = 1149318144.

The previous prime is 3112540477. The next prime is 3112540553. The reversal of 3112540540 is 450452113.

It is a happy number.

It is a super-2 number, since 2×3112540540² = 19375817226286983200, which contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 953431 + ... + 956689.

It is an arithmetic number, because the mean of its divisors is an integer number (98000490).

Almost surely, 2^3112540540 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 3112540540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3528017640).

3112540540 is an abundant number, since it is smaller than the sum of its proper divisors (3943494740).

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

3112540540 is a wasteful number, since it uses less digits than its factorization.

3112540540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3391 (or 3336 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 3112540540 is about 55790.1473380381. The cubic root of 3112540540 is about 1460.0632580335.

Adding to 3112540540 its reverse (450452113), we get a palindrome (3562992653).

The spelling of 3112540540 in words is "three billion, one hundred twelve million, five hundred forty thousand, five hundred forty".