3105522144 has 144 divisors (see below), whose sum is σ = 8975991024. Its totient is φ = 1018368000.

The previous prime is 3105522143. The next prime is 3105522193. The reversal of 3105522144 is 4412255013.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3105522143) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 7009987 + ... + 7010429.

It is an arithmetic number, because the mean of its divisors is an integer number (62333271).

Almost surely, 2^3105522144 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 3105522144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4487995512).

3105522144 is an abundant number, since it is smaller than the sum of its proper divisors (5870468880).

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

3105522144 is a wasteful number, since it uses less digits than its factorization.

3105522144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801 (or 790 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 3105522144 is about 55727.2118807320. The cubic root of 3105522144 is about 1458.9650111410.

Adding to 3105522144 its reverse (4412255013), we get a palindrome (7517777157).

The spelling of 3105522144 in words is "three billion, one hundred five million, five hundred twenty-two thousand, one hundred forty-four".