121766368 has 24 divisors (see below), whose sum is σ = 245305368. Its totient is φ = 59466624.

The previous prime is 121766353. The next prime is 121766369. The reversal of 121766368 is 863667121.

It is a happy number.

It is a super-2 number, since 2×121766368² = 29654096751822848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121766368.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121766369) 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, 42871 + ... + 45622.

It is an arithmetic number, because the mean of its divisors is an integer number (10221057).

Almost surely, 2^121766368 is an apocalyptic number.

It is an amenable number.

121766368 is an abundant number, since it is smaller than the sum of its proper divisors (123539000).

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

121766368 is an equidigital number, since it uses as much as digits as its factorization.

121766368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88546 (or 88538 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 121766368 is about 11034.7799253089. The cubic root of 121766368 is about 495.6507687338.

The spelling of 121766368 in words is "one hundred twenty-one million, seven hundred sixty-six thousand, three hundred sixty-eight".