121474128 has 40 divisors (see below), whose sum is σ = 314640576. Its totient is φ = 40384000.

The previous prime is 121474123. The next prime is 121474139. The reversal of 121474128 is 821474121.

It is a junction number, because it is equal to n+sod(n) for n = 121474095 and 121474104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121474123) 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, 16093 + ... + 22403.

Almost surely, 2^121474128 is an apocalyptic number.

It is an amenable number.

121474128 is an abundant number, since it is smaller than the sum of its proper divisors (193166448).

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

121474128 is a wasteful number, since it uses less digits than its factorization.

121474128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6723 (or 6717 counting only the distinct ones).

The product of its digits is 3584, while the sum is 30.

The square root of 121474128 is about 11021.5302022904. The cubic root of 121474128 is about 495.2539295045.

The spelling of 121474128 in words is "one hundred twenty-one million, four hundred seventy-four thousand, one hundred twenty-eight".