4055121 has 24 divisors (see below), whose sum is σ = 6749184. Its totient is φ = 2298240.

The previous prime is 4055087. The next prime is 4055137. The reversal of 4055121 is 1215504.

4055121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4055121 - 2⁶ = 4055057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4055094 and 4055103.

It is not an unprimeable number, because it can be changed into a prime (4055021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11865 + ... + 12201.

It is an arithmetic number, because the mean of its divisors is an integer number (281216).

Almost surely, 2^4055121 is an apocalyptic number.

It is an amenable number.

4055121 is a deficient number, since it is larger than the sum of its proper divisors (2694063).

4055121 is a wasteful number, since it uses less digits than its factorization.

4055121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541 (or 538 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 4055121 is about 2013.7331004877. The cubic root of 4055121 is about 159.4659407168.

The spelling of 4055121 in words is "four million, fifty-five thousand, one hundred twenty-one".