121844166 has 16 divisors (see below), whose sum is σ = 246625344. Its totient is φ = 40125224.

The previous prime is 121844153. The next prime is 121844183. The reversal of 121844166 is 661448121.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 121836 + ... + 122831.

It is an arithmetic number, because the mean of its divisors is an integer number (15414084).

Almost surely, 2^121844166 is an apocalyptic number.

121844166 is an abundant number, since it is smaller than the sum of its proper divisors (124781178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121844166 is a wasteful number, since it uses less digits than its factorization.

121844166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244755.

The product of its digits is 9216, while the sum is 33.

The square root of 121844166 is about 11038.3044893679. The cubic root of 121844166 is about 495.7563053439.

The spelling of 121844166 in words is "one hundred twenty-one million, eight hundred forty-four thousand, one hundred sixty-six".