2130165 has 32 divisors (see below), whose sum is σ = 3916800. Its totient is φ = 1097280.

The previous prime is 2130133. The next prime is 2130169. The reversal of 2130165 is 5610312.

It is not a de Polignac number, because 2130165 - 2⁵ = 2130133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130169) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3931 + ... + 4439.

It is an arithmetic number, because the mean of its divisors is an integer number (122400).

2^2130165 is an apocalyptic number.

It is an amenable number.

2130165 is a deficient number, since it is larger than the sum of its proper divisors (1786635).

2130165 is a wasteful number, since it uses less digits than its factorization.

2130165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554 (or 548 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 2130165 is about 1459.5084789065. The cubic root of 2130165 is about 128.6681573680.

Adding to 2130165 its reverse (5610312), we get a palindrome (7740477).

The spelling of 2130165 in words is "two million, one hundred thirty thousand, one hundred sixty-five".