4517121 has 16 divisors (see below), whose sum is σ = 7288704. Its totient is φ = 2429184.

The previous prime is 4517119. The next prime is 4517143. The reversal of 4517121 is 1217154.

It is a happy number.

It is not a de Polignac number, because 4517121 - 2¹ = 4517119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (4517321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5970 + ... + 6683.

It is an arithmetic number, because the mean of its divisors is an integer number (455544).

Almost surely, 2^4517121 is an apocalyptic number.

It is an amenable number.

4517121 is a deficient number, since it is larger than the sum of its proper divisors (2771583).

4517121 is a wasteful number, since it uses less digits than its factorization.

4517121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12680.

The product of its digits is 280, while the sum is 21.

The square root of 4517121 is about 2125.3519708509. The cubic root of 4517121 is about 165.3054763413.

The spelling of 4517121 in words is "four million, five hundred seventeen thousand, one hundred twenty-one".