126489 has 8 divisors (see below), whose sum is σ = 184032. Its totient is φ = 76640.

The previous prime is 126487. The next prime is 126491. The reversal of 126489 is 984621.

126489 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (126487) and next prime (126491).

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 126489 - 2¹ = 126487 is a prime.

126489 is strictly pandigital in base 7.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 126489.

It is not an unprimeable number, because it can be changed into a prime (126481) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1884 + ... + 1949.

It is an arithmetic number, because the mean of its divisors is an integer number (23004).

2¹²⁶⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

126489 is a deficient number, since it is larger than the sum of its proper divisors (57543).

126489 is a wasteful number, since it uses less digits than its factorization.

126489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3847.

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

The square root of 126489 is about 355.6529206966. The cubic root of 126489 is about 50.1977501994.

The spelling of 126489 in words is "one hundred twenty-six thousand, four hundred eighty-nine".