4455455121 has 12 divisors (see below), whose sum is σ = 6930708148. Its totient is φ = 2741818464.

The previous prime is 4455455113. The next prime is 4455455131. The reversal of 4455455121 is 1215545544.

4455455121 is a `hidden beast` number, since 4 + 45 + 545 + 51 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2644016400 + 1811438721 = 51420^2 + 42561^2 .

It is not a de Polignac number, because 4455455121 - 2³ = 4455455113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4455455101) 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 11 ways as a sum of consecutive naturals, for example, 19040290 + ... + 19040523.

Almost surely, 2^4455455121 is an apocalyptic number.

It is an amenable number.

4455455121 is a deficient number, since it is larger than the sum of its proper divisors (2475253027).

4455455121 is a wasteful number, since it uses less digits than its factorization.

4455455121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38080832 (or 38080829 counting only the distinct ones).

The product of its digits is 80000, while the sum is 36.

The square root of 4455455121 is about 66749.1956580752. The cubic root of 4455455121 is about 1645.4979963839.

The spelling of 4455455121 in words is "four billion, four hundred fifty-five million, four hundred fifty-five thousand, one hundred twenty-one".