121677512 has 32 divisors (see below), whose sum is σ = 250499520. Its totient is φ = 54949440.

The previous prime is 121677503. The next prime is 121677527. The reversal of 121677512 is 215776121.

It is an unprimeable number.

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, 9413 + ... + 18219.

It is an arithmetic number, because the mean of its divisors is an integer number (7828110).

Almost surely, 2^121677512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121677512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125249760).

121677512 is an abundant number, since it is smaller than the sum of its proper divisors (128822008).

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

121677512 is a wasteful number, since it uses less digits than its factorization.

121677512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8981 (or 8977 counting only the distinct ones).

The product of its digits is 5880, while the sum is 32.

The square root of 121677512 is about 11030.7530114675. The cubic root of 121677512 is about 495.5301764265.

The spelling of 121677512 in words is "one hundred twenty-one million, six hundred seventy-seven thousand, five hundred twelve".