4541201521 has 4 divisors (see below), whose sum is σ = 4541569344. Its totient is φ = 4540833700.

The previous prime is 4541201513. The next prime is 4541201527. The reversal of 4541201521 is 1251021454.

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 4541201521 - 2³ = 4541201513 is a prime.

It is a super-2 number, since 2×4541201521² = 41245022508665426882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4541201527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164725 + ... + 190306.

It is an arithmetic number, because the mean of its divisors is an integer number (1135392336).

Almost surely, 2^4541201521 is an apocalyptic number.

It is an amenable number.

4541201521 is a deficient number, since it is larger than the sum of its proper divisors (367823).

4541201521 is a wasteful number, since it uses less digits than its factorization.

4541201521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367822.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 4541201521 is about 67388.4375913257. The cubic root of 4541201521 is about 1655.9870067175.

Adding to 4541201521 its reverse (1251021454), we get a palindrome (5792222975).

The spelling of 4541201521 in words is "four billion, five hundred forty-one million, two hundred one thousand, five hundred twenty-one".