121500984 has 32 divisors (see below), whose sum is σ = 331367040. Its totient is φ = 36818400.

The previous prime is 121500983. The next prime is 121501013. The reversal of 121500984 is 489005121.

It is a happy number.

It is a super-2 number, since 2×121500984² = 29524978225936512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121500983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229852 + ... + 230379.

It is an arithmetic number, because the mean of its divisors is an integer number (10355220).

Almost surely, 2^121500984 is an apocalyptic number.

It is an amenable number.

121500984 is an abundant number, since it is smaller than the sum of its proper divisors (209866056).

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

121500984 is a wasteful number, since it uses less digits than its factorization.

121500984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460251 (or 460247 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 121500984 is about 11022.7484775804. The cubic root of 121500984 is about 495.2904244073.

It can be divided in two parts, 121 and 500984, that added together give a palindrome (501105).

The spelling of 121500984 in words is "one hundred twenty-one million, five hundred thousand, nine hundred eighty-four".