121836108 has 24 divisors (see below), whose sum is σ = 286196400. Its totient is φ = 40338880.

The previous prime is 121836101. The next prime is 121836119. The reversal of 121836108 is 801638121.

It is not an unprimeable number, because it can be changed into a prime (121836101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32283 + ... + 35858.

It is an arithmetic number, because the mean of its divisors is an integer number (11924850).

Almost surely, 2^121836108 is an apocalyptic number.

It is an amenable number.

121836108 is an abundant number, since it is smaller than the sum of its proper divisors (164360292).

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

121836108 is a wasteful number, since it uses less digits than its factorization.

121836108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68297 (or 68295 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 121836108 is about 11037.9394816243. The cubic root of 121836108 is about 495.7453763776.

The spelling of 121836108 in words is "one hundred twenty-one million, eight hundred thirty-six thousand, one hundred eight".