4254521 has 4 divisors (see below), whose sum is σ = 4262544. Its totient is φ = 4246500.

The previous prime is 4254491. The next prime is 4254527. The reversal of 4254521 is 1254524.

It is a happy number.

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 4254521 - 2¹⁸ = 3992377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4254527) 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 3 ways as a sum of consecutive naturals, for example, 3155 + ... + 4296.

It is an arithmetic number, because the mean of its divisors is an integer number (1065636).

Almost surely, 2^4254521 is an apocalyptic number.

It is an amenable number.

4254521 is a deficient number, since it is larger than the sum of its proper divisors (8023).

4254521 is an equidigital number, since it uses as much as digits as its factorization.

4254521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8022.

The product of its digits is 1600, while the sum is 23.

The square root of 4254521 is about 2062.6490249192. The cubic root of 4254521 is about 162.0380061212.

The spelling of 4254521 in words is "four million, two hundred fifty-four thousand, five hundred twenty-one".