2144513500 has 48 divisors (see below), whose sum is σ = 4692778272. Its totient is φ = 856128000.

The previous prime is 2144513419. The next prime is 2144513519. The reversal of 2144513500 is 53154412.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 269580 + ... + 277420.

It is an arithmetic number, because the mean of its divisors is an integer number (97766214).

Almost surely, 2^2144513500 is an apocalyptic number.

2144513500 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 2144513500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2346389136).

2144513500 is an abundant number, since it is smaller than the sum of its proper divisors (2548264772).

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

2144513500 is a wasteful number, since it uses less digits than its factorization.

2144513500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8407 (or 8395 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2144513500 is about 46308.8922346454. The cubic root of 2144513500 is about 1289.5640816230.

Adding to 2144513500 its reverse (53154412), we get a palindrome (2197667912).

The spelling of 2144513500 in words is "two billion, one hundred forty-four million, five hundred thirteen thousand, five hundred".