4025121 has 4 divisors (see below), whose sum is σ = 5366832. Its totient is φ = 2683412.

The previous prime is 4025111. The next prime is 4025167. The reversal of 4025121 is 1215204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4025121 - 2⁵ = 4025089 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 4025121.

It is not an unprimeable number, because it can be changed into a prime (4025111) 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, 670851 + ... + 670856.

It is an arithmetic number, because the mean of its divisors is an integer number (1341708).

Almost surely, 2^4025121 is an apocalyptic number.

It is an amenable number.

4025121 is a deficient number, since it is larger than the sum of its proper divisors (1341711).

4025121 is a wasteful number, since it uses less digits than its factorization.

4025121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341710.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 4025121 is about 2006.2704204568. The cubic root of 4025121 is about 159.0717211342.

The spelling of 4025121 in words is "four million, twenty-five thousand, one hundred twenty-one".