121394166 has 16 divisors (see below), whose sum is σ = 244131888. Its totient is φ = 40240800.

The previous prime is 121394159. The next prime is 121394183. The reversal of 121394166 is 661493121.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54805 + ... + 56976.

It is an arithmetic number, because the mean of its divisors is an integer number (15258243).

Almost surely, 2^121394166 is an apocalyptic number.

121394166 is an abundant number, since it is smaller than the sum of its proper divisors (122737722).

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

121394166 is a wasteful number, since it uses less digits than its factorization.

121394166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111967.

The product of its digits is 7776, while the sum is 33.

The square root of 121394166 is about 11017.9020689059. The cubic root of 121394166 is about 495.1452364356.

The spelling of 121394166 in words is "one hundred twenty-one million, three hundred ninety-four thousand, one hundred sixty-six".