4395121 has 4 divisors (see below), whose sum is σ = 4411044. Its totient is φ = 4379200.

The previous prime is 4395109. The next prime is 4395143. The reversal of 4395121 is 1215934.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1215934 = 2 ⋅607967.

It can be written as a sum of positive squares in 2 ways, for example, as 3920400 + 474721 = 1980^2 + 689^2 .

It is a cyclic number.

It is not a de Polignac number, because 4395121 - 2⁹ = 4394609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4395151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7540 + ... + 8101.

It is an arithmetic number, because the mean of its divisors is an integer number (1102761).

Almost surely, 2^4395121 is an apocalyptic number.

It is an amenable number.

4395121 is a deficient number, since it is larger than the sum of its proper divisors (15923).

4395121 is a wasteful number, since it uses less digits than its factorization.

4395121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15922.

The product of its digits is 1080, while the sum is 25.

The square root of 4395121 is about 2096.4543877700. The cubic root of 4395121 is about 163.8036640150.

The spelling of 4395121 in words is "four million, three hundred ninety-five thousand, one hundred twenty-one".