121459 has 4 divisors (see below), whose sum is σ = 130816. Its totient is φ = 112104.

The previous prime is 121453. The next prime is 121469. The reversal of 121459 is 954121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 954121 = 7 ⋅136303.

It is a cyclic number.

It is not a de Polignac number, because 121459 - 2⁹ = 120947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121453) 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, 4659 + ... + 4684.

It is an arithmetic number, because the mean of its divisors is an integer number (32704).

2¹²¹⁴⁵⁹ is an apocalyptic number.

121459 is a deficient number, since it is larger than the sum of its proper divisors (9357).

121459 is an equidigital number, since it uses as much as digits as its factorization.

121459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9356.

The product of its digits is 360, while the sum is 22.

The square root of 121459 is about 348.5096842270. The cubic root of 121459 is about 49.5233369537.

The spelling of 121459 in words is "one hundred twenty-one thousand, four hundred fifty-nine".