4521601 has 8 divisors (see below), whose sum is σ = 5439680. Its totient is φ = 3671568.

The previous prime is 4521599. The next prime is 4521607. The reversal of 4521601 is 1061254.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4521601 - 2¹ = 4521599 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4521607) 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 7 ways as a sum of consecutive naturals, for example, 16866 + ... + 17131.

It is an arithmetic number, because the mean of its divisors is an integer number (679960).

Almost surely, 2^4521601 is an apocalyptic number.

It is an amenable number.

4521601 is a deficient number, since it is larger than the sum of its proper divisors (918079).

4521601 is a wasteful number, since it uses less digits than its factorization.

4521601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34023.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 4521601 is about 2126.4056527389. The cubic root of 4521601 is about 165.3601072918.

Adding to 4521601 its reverse (1061254), we get a palindrome (5582855).

The spelling of 4521601 in words is "four million, five hundred twenty-one thousand, six hundred one".