4288121 has 2 divisors, whose sum is σ = 4288122. Its totient is φ = 4288120.

The previous prime is 4288111. The next prime is 4288127. The reversal of 4288121 is 1218824.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4243600 + 44521 = 2060^2 + 211^2 .

It is a cyclic number.

It is not a de Polignac number, because 4288121 - 2¹⁰ = 4287097 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4288127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2144060 + 2144061.

It is an arithmetic number, because the mean of its divisors is an integer number (2144061).

Almost surely, 2^4288121 is an apocalyptic number.

It is an amenable number.

4288121 is a deficient number, since it is larger than the sum of its proper divisors (1).

4288121 is an equidigital number, since it uses as much as digits as its factorization.

4288121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1024, while the sum is 26.

The square root of 4288121 is about 2070.7778731675. Note that the first 3 decimals coincide. The cubic root of 4288121 is about 162.4634521357.

The spelling of 4288121 in words is "four million, two hundred eighty-eight thousand, one hundred twenty-one".