121483978 has 32 divisors (see below), whose sum is σ = 234528768. Its totient is φ = 45802800.

The previous prime is 121483969. The next prime is 121483991. The reversal of 121483978 is 879384121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7950 + ... + 17497.

It is an arithmetic number, because the mean of its divisors is an integer number (7329024).

Almost surely, 2^121483978 is an apocalyptic number.

121483978 is a deficient number, since it is larger than the sum of its proper divisors (113044790).

121483978 is a wasteful number, since it uses less digits than its factorization.

121483978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25498.

The product of its digits is 96768, while the sum is 43.

The square root of 121483978 is about 11021.9770458843. The cubic root of 121483978 is about 495.2673153984.

The spelling of 121483978 in words is "one hundred twenty-one million, four hundred eighty-three thousand, nine hundred seventy-eight".