121814028 has 36 divisors (see below), whose sum is σ = 351907920. Its totient is φ = 34803936.

The previous prime is 121814009. The next prime is 121814029. The reversal of 121814028 is 820418121.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 121813992 and 121814010.

It is not an unprimeable number, because it can be changed into a prime (121814029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 241443 + ... + 241946.

It is an arithmetic number, because the mean of its divisors is an integer number (9775220).

Almost surely, 2^121814028 is an apocalyptic number.

121814028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

121814028 is an abundant number, since it is smaller than the sum of its proper divisors (230093892).

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

121814028 is a wasteful number, since it uses less digits than its factorization.

121814028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483406 (or 483401 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 121814028 is about 11036.9392496289. The cubic root of 121814028 is about 495.7154270755.

The spelling of 121814028 in words is "one hundred twenty-one million, eight hundred fourteen thousand, twenty-eight".