4521109 has 4 divisors (see below), whose sum is σ = 4583116. Its totient is φ = 4459104.

The previous prime is 4521103. The next prime is 4521113. The reversal of 4521109 is 9011254.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2280100 + 2241009 = 1510^2 + 1497^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4521109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4521109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4521103) 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, 30894 + ... + 31039.

It is an arithmetic number, because the mean of its divisors is an integer number (1145779).

Almost surely, 2^4521109 is an apocalyptic number.

It is an amenable number.

4521109 is a deficient number, since it is larger than the sum of its proper divisors (62007).

4521109 is an equidigital number, since it uses as much as digits as its factorization.

4521109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62006.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 4521109 is about 2126.2899614117. The cubic root of 4521109 is about 165.3541094071.

The spelling of 4521109 in words is "four million, five hundred twenty-one thousand, one hundred nine".