121795854 has 32 divisors (see below), whose sum is σ = 258577920. Its totient is φ = 38113152.

The previous prime is 121795813. The next prime is 121795867. The reversal of 121795854 is 458597121.

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 (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45937 + ... + 48515.

It is an arithmetic number, because the mean of its divisors is an integer number (8080560).

Almost surely, 2^121795854 is an apocalyptic number.

121795854 is an abundant number, since it is smaller than the sum of its proper divisors (136782066).

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

121795854 is a wasteful number, since it uses less digits than its factorization.

121795854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3064.

The product of its digits is 100800, while the sum is 42.

The square root of 121795854 is about 11036.1158928311. The cubic root of 121795854 is about 495.6907731545.

The spelling of 121795854 in words is "one hundred twenty-one million, seven hundred ninety-five thousand, eight hundred fifty-four".