2163125180 has 24 divisors (see below), whose sum is σ = 4639215168. Its totient is φ = 846840128.

The previous prime is 2163125171. The next prime is 2163125189. The reversal of 2163125180 is 815213612.

It is an interprime number because it is at equal distance from previous prime (2163125171) and next prime (2163125189).

It is a super-2 number, since 2×2163125180² = 9358221088700064800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163125189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1149659 + ... + 1151538.

It is an arithmetic number, because the mean of its divisors is an integer number (193300632).

Almost surely, 2^2163125180 is an apocalyptic number.

2163125180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2163125180 is an abundant number, since it is smaller than the sum of its proper divisors (2476089988).

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

2163125180 is a wasteful number, since it uses less digits than its factorization.

2163125180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2301253 (or 2301251 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 2163125180 is about 46509.4095855882. The cubic root of 2163125180 is about 1293.2839391688.

Adding to 2163125180 its reverse (815213612), we get a palindrome (2978338792).

The spelling of 2163125180 in words is "two billion, one hundred sixty-three million, one hundred twenty-five thousand, one hundred eighty".