121828072 has 32 divisors (see below), whose sum is σ = 238091400. Its totient is φ = 58369024.

The previous prime is 121828061. The next prime is 121828081. The reversal of 121828072 is 270828121.

It can be written as a sum of positive squares in 4 ways, for example, as 95140516 + 26687556 = 9754^2 + 5166^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29868 + ... + 33700.

Almost surely, 2^121828072 is an apocalyptic number.

It is an amenable number.

121828072 is a deficient number, since it is larger than the sum of its proper divisors (116263328).

121828072 is a wasteful number, since it uses less digits than its factorization.

121828072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4005 (or 4001 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 121828072 is about 11037.5754584057. The cubic root of 121828072 is about 495.7344767696.

The spelling of 121828072 in words is "one hundred twenty-one million, eight hundred twenty-eight thousand, seventy-two".