2102130 has 24 divisors (see below), whose sum is σ = 5465772. Its totient is φ = 560544.

The previous prime is 2102117. The next prime is 2102137. The reversal of 2102130 is 312012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2082249 + 19881 = 1443^2 + 141^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (2102137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11589 + ... + 11768.

2^2102130 is an apocalyptic number.

2102130 is an abundant number, since it is smaller than the sum of its proper divisors (3363642).

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

2102130 is a wasteful number, since it uses less digits than its factorization.

2102130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23370 (or 23367 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 2102130 is about 1449.8724081794. The cubic root of 2102130 is about 128.1011976407.

Adding to 2102130 its reverse (312012), we get a palindrome (2414142).

The spelling of 2102130 in words is "two million, one hundred two thousand, one hundred thirty".