2144125500 has 192 divisors, whose sum is σ = 6856012800. Its totient is φ = 516384000.

The previous prime is 2144125483. The next prime is 2144125517. The reversal of 2144125500 is 55214412.

It is an interprime number because it is at equal distance from previous prime (2144125483) and next prime (2144125517).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3283174 + ... + 3283826.

It is an arithmetic number, because the mean of its divisors is an integer number (35708400).

Almost surely, 2^2144125500 is an apocalyptic number.

2144125500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2144125500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3428006400).

2144125500 is an abundant number, since it is smaller than the sum of its proper divisors (4711887300).

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

2144125500 is a wasteful number, since it uses less digits than its factorization.

2144125500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885 (or 873 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 2144125500 is about 46304.7027849224. The cubic root of 2144125500 is about 1289.4863046910.

Adding to 2144125500 its reverse (55214412), we get a palindrome (2199339912).

It can be divided in two parts, 214412 and 5500, that added together give a palindrome (219912).

The spelling of 2144125500 in words is "two billion, one hundred forty-four million, one hundred twenty-five thousand, five hundred".