3115222144 has 32 divisors (see below), whose sum is σ = 6275861100. Its totient is φ = 1540104192.

The previous prime is 3115222133. The next prime is 3115222157. The reversal of 3115222144 is 4412225113.

It can be written as a sum of positive squares in 2 ways, for example, as 3081582144 + 33640000 = 55512^2 + 5800^2 .

It is a tau number, because it is divible by the number of its divisors (32).

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 3 ways as a sum of consecutive naturals, for example, 125337 + ... + 148120.

Almost surely, 2^3115222144 is an apocalyptic number.

It is an amenable number.

3115222144 is an abundant number, since it is smaller than the sum of its proper divisors (3160638956).

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

3115222144 is an equidigital number, since it uses as much as digits as its factorization.

3115222144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273560 (or 273548 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 3115222144 is about 55814.1751170794. The cubic root of 3115222144 is about 1460.4824426782.

Adding to 3115222144 its reverse (4412225113), we get a palindrome (7527447257).

The spelling of 3115222144 in words is "three billion, one hundred fifteen million, two hundred twenty-two thousand, one hundred forty-four".