2162129 has 4 divisors (see below), whose sum is σ = 2165760. Its totient is φ = 2158500.

The previous prime is 2162119. The next prime is 2162137. The reversal of 2162129 is 9212612.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2162129 - 2⁴ = 2162113 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2162119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 689 + ... + 2190.

It is an arithmetic number, because the mean of its divisors is an integer number (541440).

2^2162129 is an apocalyptic number.

It is an amenable number.

2162129 is a deficient number, since it is larger than the sum of its proper divisors (3631).

2162129 is an equidigital number, since it uses as much as digits as its factorization.

2162129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3630.

The product of its digits is 432, while the sum is 23.

The square root of 2162129 is about 1470.4179677901. The cubic root of 2162129 is about 129.3085377472.

The spelling of 2162129 in words is "two million, one hundred sixty-two thousand, one hundred twenty-nine".