2125547112 has 128 divisors (see below), whose sum is σ = 5945788800. Its totient is φ = 628712448.

The previous prime is 2125547087. The next prime is 2125547117. The reversal of 2125547112 is 2117455212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2125547112.

It is not an unprimeable number, because it can be changed into a prime (2125547117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3139318 + ... + 3139994.

It is an arithmetic number, because the mean of its divisors is an integer number (46451475).

Almost surely, 2^2125547112 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 2125547112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2972894400).

2125547112 is an abundant number, since it is smaller than the sum of its proper divisors (3820241688).

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

2125547112 is a wasteful number, since it uses less digits than its factorization.

2125547112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075 (or 1071 counting only the distinct ones).

The product of its digits is 5600, while the sum is 30.

The square root of 2125547112 is about 46103.6561673800. The cubic root of 2125547112 is about 1285.7511214702.

The spelling of 2125547112 in words is "two billion, one hundred twenty-five million, five hundred forty-seven thousand, one hundred twelve".