121846 has 4 divisors (see below), whose sum is σ = 182772. Its totient is φ = 60922.

The previous prime is 121843. The next prime is 121853. The reversal of 121846 is 648121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 648121 = 29 ⋅22349.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30460 + ... + 30463.

It is an arithmetic number, because the mean of its divisors is an integer number (45693).

2¹²¹⁸⁴⁶ is an apocalyptic number.

121846 is a deficient number, since it is larger than the sum of its proper divisors (60926).

121846 is an equidigital number, since it uses as much as digits as its factorization.

121846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60925.

The product of its digits is 384, while the sum is 22.

The square root of 121846 is about 349.0644639605. The cubic root of 121846 is about 49.5758792708.

Adding to 121846 its reverse (648121), we get a palindrome (769967).

The spelling of 121846 in words is "one hundred twenty-one thousand, eight hundred forty-six".