121545152 has 28 divisors (see below), whose sum is σ = 243459000. Its totient is φ = 60201216.

The previous prime is 121545139. The next prime is 121545157. The reversal of 121545152 is 251545121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121545157) 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 3 ways as a sum of consecutive naturals, for example, 2027 + ... + 15722.

Almost surely, 2^121545152 is an apocalyptic number.

It is an amenable number.

121545152 is an abundant number, since it is smaller than the sum of its proper divisors (121913848).

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

121545152 is a wasteful number, since it uses less digits than its factorization.

121545152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17868 (or 17858 counting only the distinct ones).

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

The square root of 121545152 is about 11024.7517885892. The cubic root of 121545152 is about 495.3504330769.

The spelling of 121545152 in words is "one hundred twenty-one million, five hundred forty-five thousand, one hundred fifty-two".