121573552 has 20 divisors (see below), whose sum is σ = 247946680. Its totient is φ = 57587328.

The previous prime is 121573541. The next prime is 121573559. The reversal of 121573552 is 255375121.

It is not an unprimeable number, because it can be changed into a prime (121573559) 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, 199653 + ... + 200260.

It is an arithmetic number, because the mean of its divisors is an integer number (12397334).

Almost surely, 2^121573552 is an apocalyptic number.

It is an amenable number.

121573552 is an abundant number, since it is smaller than the sum of its proper divisors (126373128).

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

121573552 is a wasteful number, since it uses less digits than its factorization.

121573552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399940 (or 399934 counting only the distinct ones).

The product of its digits is 10500, while the sum is 31.

The square root of 121573552 is about 11026.0397242165. The cubic root of 121573552 is about 495.3890109401.

The spelling of 121573552 in words is "one hundred twenty-one million, five hundred seventy-three thousand, five hundred fifty-two".