2130161 has 8 divisors (see below), whose sum is σ = 2337984. Its totient is φ = 1924720.

The previous prime is 2130133. The next prime is 2130169. The reversal of 2130161 is 1610312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2130161 - 2¹⁸ = 1868017 is a prime.

It is a Curzon number.

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

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1676 + ... + 2658.

It is an arithmetic number, because the mean of its divisors is an integer number (292248).

2^2130161 is an apocalyptic number.

It is an amenable number.

2130161 is a deficient number, since it is larger than the sum of its proper divisors (207823).

2130161 is a wasteful number, since it uses less digits than its factorization.

2130161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2130161 is about 1459.5071085815. The cubic root of 2130161 is about 128.6680768308.

Adding to 2130161 its reverse (1610312), we get a palindrome (3740473).

The spelling of 2130161 in words is "two million, one hundred thirty thousand, one hundred sixty-one".