2145105888 has 96 divisors (see below), whose sum is σ = 5772676896. Its totient is φ = 697202688.

The previous prime is 2145105863. The next prime is 2145105899. The reversal of 2145105888 is 8885015412.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 879006 + ... + 881442.

It is an arithmetic number, because the mean of its divisors is an integer number (60132051).

Almost surely, 2^2145105888 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 2145105888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2886338448).

2145105888 is an abundant number, since it is smaller than the sum of its proper divisors (3627571008).

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

2145105888 is a wasteful number, since it uses less digits than its factorization.

2145105888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2676 (or 2668 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 42.

The square root of 2145105888 is about 46315.2878432165. The cubic root of 2145105888 is about 1289.6828112646.

The spelling of 2145105888 in words is "two billion, one hundred forty-five million, one hundred five thousand, eight hundred eighty-eight".