3112146520 has 64 divisors (see below), whose sum is σ = 8023106880. Its totient is φ = 1064295936.

The previous prime is 3112146509. The next prime is 3112146523. The reversal of 3112146520 is 256412113.

It is a happy number.

It is a super-2 number, since 2×3112146520² = 19370911923896220800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3112146523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97162 + ... + 125158.

It is an arithmetic number, because the mean of its divisors is an integer number (125361045).

Almost surely, 2^3112146520 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 3112146520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4011553440).

3112146520 is an abundant number, since it is smaller than the sum of its proper divisors (4910960360).

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

3112146520 is a wasteful number, since it uses less digits than its factorization.

3112146520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28412 (or 28408 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 3112146520 is about 55786.6159575933. The cubic root of 3112146520 is about 1460.0016450848.

Adding to 3112146520 its reverse (256412113), we get a palindrome (3368558633).

The spelling of 3112146520 in words is "three billion, one hundred twelve million, one hundred forty-six thousand, five hundred twenty".