121080578 has 16 divisors (see below), whose sum is σ = 191886720. Its totient is φ = 57141936.

The previous prime is 121080577. The next prime is 121080623. The reversal of 121080578 is 875080121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (121080571) 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 7 ways as a sum of consecutive naturals, for example, 4775 + ... + 16277.

It is an arithmetic number, because the mean of its divisors is an integer number (11992920).

Almost surely, 2^121080578 is an apocalyptic number.

121080578 is a deficient number, since it is larger than the sum of its proper divisors (70806142).

121080578 is a wasteful number, since it uses less digits than its factorization.

121080578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11801.

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 121080578 is about 11003.6620267982. The cubic root of 121080578 is about 494.7185122032.

The spelling of 121080578 in words is "one hundred twenty-one million, eighty thousand, five hundred seventy-eight".