121752528 has 40 divisors (see below), whose sum is σ = 317324928. Its totient is φ = 40223232.

The previous prime is 121752481. The next prime is 121752529. The reversal of 121752528 is 825257121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121752529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5800 + ... + 16647.

Almost surely, 2^121752528 is an apocalyptic number.

It is an amenable number.

121752528 is an abundant number, since it is smaller than the sum of its proper divisors (195572400).

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

121752528 is a wasteful number, since it uses less digits than its factorization.

121752528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22571 (or 22565 counting only the distinct ones).

The product of its digits is 11200, while the sum is 33.

The square root of 121752528 is about 11034.1527993770. The cubic root of 121752528 is about 495.6319894198.

The spelling of 121752528 in words is "one hundred twenty-one million, seven hundred fifty-two thousand, five hundred twenty-eight".