121747488 has 48 divisors (see below), whose sum is σ = 321291936. Its totient is φ = 40366080.

The previous prime is 121747477. The next prime is 121747529. The reversal of 121747488 is 884747121.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15243 + ... + 21813.

It is an arithmetic number, because the mean of its divisors is an integer number (6693582).

Almost surely, 2^121747488 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 121747488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160645968).

121747488 is an abundant number, since it is smaller than the sum of its proper divisors (199544448).

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

121747488 is a wasteful number, since it uses less digits than its factorization.

121747488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6777 (or 6769 counting only the distinct ones).

The product of its digits is 100352, while the sum is 42.

The square root of 121747488 is about 11033.9244151843. The cubic root of 121747488 is about 495.6251503567.

The spelling of 121747488 in words is "one hundred twenty-one million, seven hundred forty-seven thousand, four hundred eighty-eight".