2102145164 has 24 divisors (see below), whose sum is σ = 4211789568. Its totient is φ = 899312400.

The previous prime is 2102145163. The next prime is 2102145169. The reversal of 2102145164 is 4615412012.

It is not an unprimeable number, because it can be changed into a prime (2102145163) 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, 50912 + ... + 82439.

It is an arithmetic number, because the mean of its divisors is an integer number (175491232).

Almost surely, 2^2102145164 is an apocalyptic number.

It is an amenable number.

2102145164 is an abundant number, since it is smaller than the sum of its proper divisors (2109644404).

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

2102145164 is a wasteful number, since it uses less digits than its factorization.

2102145164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133925 (or 133923 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 2102145164 is about 45849.1566334649. The cubic root of 2102145164 is about 1281.0150566505.

Adding to 2102145164 its reverse (4615412012), we get a palindrome (6717557176).

The spelling of 2102145164 in words is "two billion, one hundred two million, one hundred forty-five thousand, one hundred sixty-four".