121332544 has 56 divisors (see below), whose sum is σ = 253471680. Its totient is φ = 57513984.

The previous prime is 121332503. The next prime is 121332551. The reversal of 121332544 is 445233121.

It is a congruent number.

It is an unprimeable number.

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, 204312 + ... + 204904.

It is an arithmetic number, because the mean of its divisors is an integer number (4526280).

Almost surely, 2^121332544 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 121332544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126735840).

121332544 is an abundant number, since it is smaller than the sum of its proper divisors (132139136).

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

121332544 is a wasteful number, since it uses less digits than its factorization.

121332544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767 (or 757 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 121332544 is about 11015.1052650440. The cubic root of 121332544 is about 495.0614405251.

Adding to 121332544 its reverse (445233121), we get a palindrome (566565665).

The spelling of 121332544 in words is "one hundred twenty-one million, three hundred thirty-two thousand, five hundred forty-four".