121545532 has 24 divisors (see below), whose sum is σ = 216090000. Its totient is φ = 59811456.

The previous prime is 121545503. The next prime is 121545551. The reversal of 121545532 is 235545121.

It is a self number, because there is not a number n which added to its sum of digits gives 121545532.

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, 115344 + ... + 116392.

It is an arithmetic number, because the mean of its divisors is an integer number (9003750).

Almost surely, 2^121545532 is an apocalyptic number.

It is an amenable number.

121545532 is a deficient number, since it is larger than the sum of its proper divisors (94544468).

121545532 is a wasteful number, since it uses less digits than its factorization.

121545532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485 (or 1483 counting only the distinct ones).

The product of its digits is 6000, while the sum is 28.

The square root of 121545532 is about 11024.7690225238. The cubic root of 121545532 is about 495.3509492992.

The spelling of 121545532 in words is "one hundred twenty-one million, five hundred forty-five thousand, five hundred thirty-two".