121541552 has 40 divisors (see below), whose sum is σ = 265764240. Its totient is φ = 53338880.

The previous prime is 121541549. The next prime is 121541573. The reversal of 121541552 is 255145121.

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, 6803 + ... + 17010.

It is an arithmetic number, because the mean of its divisors is an integer number (6644106).

Almost surely, 2^121541552 is an apocalyptic number.

It is an amenable number.

121541552 is an abundant number, since it is smaller than the sum of its proper divisors (144222688).

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

121541552 is a wasteful number, since it uses less digits than its factorization.

121541552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23861 (or 23855 counting only the distinct ones).

The product of its digits is 2000, while the sum is 26.

The square root of 121541552 is about 11024.5885183983. The cubic root of 121541552 is about 495.3455424961.

Adding to 121541552 its reverse (255145121), we get a palindrome (376686673).

The spelling of 121541552 in words is "one hundred twenty-one million, five hundred forty-one thousand, five hundred fifty-two".