4521501 has 24 divisors (see below), whose sum is σ = 7076160. Its totient is φ = 2879712.

The previous prime is 4521427. The next prime is 4521509. The reversal of 4521501 is 1051254.

It is not a de Polignac number, because 4521501 - 2¹¹ = 4519453 is a prime.

It is a Curzon number.

4521501 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4521509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5185 + ... + 5993.

It is an arithmetic number, because the mean of its divisors is an integer number (294840).

Almost surely, 2^4521501 is an apocalyptic number.

It is an amenable number.

4521501 is a deficient number, since it is larger than the sum of its proper divisors (2554659).

4521501 is an equidigital number, since it uses as much as digits as its factorization.

4521501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847 (or 835 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 4521501 is about 2126.3821387512. The cubic root of 4521501 is about 165.3588882448.

Adding to 4521501 its reverse (1051254), we get a palindrome (5572755).

It can be divided in two parts, 452 and 1501, that added together give a triangular number (1953 = T₆₂).

The spelling of 4521501 in words is "four million, five hundred twenty-one thousand, five hundred one".