121459812 has 12 divisors (see below), whose sum is σ = 283406256. Its totient is φ = 40486600.

The previous prime is 121459787. The next prime is 121459817. The reversal of 121459812 is 218954121.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (121459817) 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, 5060814 + ... + 5060837.

It is an arithmetic number, because the mean of its divisors is an integer number (23617188).

Almost surely, 2^121459812 is an apocalyptic number.

121459812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121459812 is an abundant number, since it is smaller than the sum of its proper divisors (161946444).

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

121459812 is a wasteful number, since it uses less digits than its factorization.

121459812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10121658 (or 10121656 counting only the distinct ones).

The product of its digits is 5760, while the sum is 33.

The square root of 121459812 is about 11020.8807270563. The cubic root of 121459812 is about 495.2344731426.

The spelling of 121459812 in words is "one hundred twenty-one million, four hundred fifty-nine thousand, eight hundred twelve".