2143173460 has 24 divisors (see below), whose sum is σ = 4505809896. Its totient is φ = 856289280.

The previous prime is 2143173413. The next prime is 2143173469. The reversal of 2143173460 is 643713412.

It can be written as a sum of positive squares in 4 ways, for example, as 442765764 + 1700407696 = 21042^2 + 41236^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143173469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43197 + ... + 78436.

It is an arithmetic number, because the mean of its divisors is an integer number (187742079).

Almost surely, 2^2143173460 is an apocalyptic number.

2143173460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2143173460 is an abundant number, since it is smaller than the sum of its proper divisors (2362636436).

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

2143173460 is a wasteful number, since it uses less digits than its factorization.

2143173460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122523 (or 122521 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 2143173460 is about 46294.4214781868. The cubic root of 2143173460 is about 1289.2954227850.

Adding to 2143173460 its reverse (643713412), we get a palindrome (2786886872).

The spelling of 2143173460 in words is "two billion, one hundred forty-three million, one hundred seventy-three thousand, four hundred sixty".