121575408 has 40 divisors (see below), whose sum is σ = 314469456. Its totient is φ = 40473600.

The previous prime is 121575403. The next prime is 121575409. The reversal of 121575408 is 804575121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121575403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64398 + ... + 66258.

Almost surely, 2^121575408 is an apocalyptic number.

It is an amenable number.

121575408 is an abundant number, since it is smaller than the sum of its proper divisors (192894048).

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

121575408 is a wasteful number, since it uses less digits than its factorization.

121575408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3233 (or 3227 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 33.

The square root of 121575408 is about 11026.1238882937. The cubic root of 121575408 is about 495.3915318758.

The spelling of 121575408 in words is "one hundred twenty-one million, five hundred seventy-five thousand, four hundred eight".