162489 has 4 divisors (see below), whose sum is σ = 216656. Its totient is φ = 108324.

The previous prime is 162473. The next prime is 162493. The reversal of 162489 is 984261.

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 not a de Polignac number, because 162489 - 2⁴ = 162473 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (162419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27079 + ... + 27084.

It is an arithmetic number, because the mean of its divisors is an integer number (54164).

2¹⁶²⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

162489 is a deficient number, since it is larger than the sum of its proper divisors (54167).

162489 is an equidigital number, since it uses as much as digits as its factorization.

162489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54166.

The product of its digits is 3456, while the sum is 30.

The square root of 162489 is about 403.0992433632. The cubic root of 162489 is about 54.5684128102.

The spelling of 162489 in words is "one hundred sixty-two thousand, four hundred eighty-nine".