2162489 has 4 divisors (see below), whose sum is σ = 2471424. Its totient is φ = 1853556.

The previous prime is 2162449. The next prime is 2162497. The reversal of 2162489 is 9842612.

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 2162489 - 2¹² = 2158393 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (2162449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154457 + ... + 154470.

It is an arithmetic number, because the mean of its divisors is an integer number (617856).

2^2162489 is an apocalyptic number.

It is an amenable number.

2162489 is a deficient number, since it is larger than the sum of its proper divisors (308935).

2162489 is an equidigital number, since it uses as much as digits as its factorization.

2162489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308934.

The product of its digits is 6912, while the sum is 32.

The square root of 2162489 is about 1470.5403768683. The cubic root of 2162489 is about 129.3157140829.

The spelling of 2162489 in words is "two million, one hundred sixty-two thousand, four hundred eighty-nine".