121844 has 12 divisors (see below), whose sum is σ = 216384. Its totient is φ = 60024.

The previous prime is 121843. The next prime is 121853. The reversal of 121844 is 448121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121843) 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, 149 + ... + 515.

It is an arithmetic number, because the mean of its divisors is an integer number (18032).

2¹²¹⁸⁴⁴ is an apocalyptic number.

It is an amenable number.

121844 is a deficient number, since it is larger than the sum of its proper divisors (94540).

121844 is a wasteful number, since it uses less digits than its factorization.

121844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 452 counting only the distinct ones).

The product of its digits is 256, while the sum is 20.

The square root of 121844 is about 349.0615991483. The cubic root of 121844 is about 49.5756080205.

Adding to 121844 its reverse (448121), we get a palindrome (569965).

The spelling of 121844 in words is "one hundred twenty-one thousand, eight hundred forty-four".