2163146140 has 12 divisors (see below), whose sum is σ = 4542606936. Its totient is φ = 865258448.

The previous prime is 2163146131. The next prime is 2163146173. The reversal of 2163146140 is 416413612.

It is a junction number, because it is equal to n+sod(n) for n = 2163146099 and 2163146108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54078634 + ... + 54078673.

It is an arithmetic number, because the mean of its divisors is an integer number (378550578).

Almost surely, 2^2163146140 is an apocalyptic number.

2163146140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2163146140 is an abundant number, since it is smaller than the sum of its proper divisors (2379460796).

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

2163146140 is a wasteful number, since it uses less digits than its factorization.

2163146140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108157316 (or 108157314 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 2163146140 is about 46509.6349157892. The cubic root of 2163146140 is about 1293.2881163264.

Adding to 2163146140 its reverse (416413612), we get a palindrome (2579559752).

The spelling of 2163146140 in words is "two billion, one hundred sixty-three million, one hundred forty-six thousand, one hundred forty".