4539109 has 4 divisors (see below), whose sum is σ = 4695660. Its totient is φ = 4382560.

The previous prime is 4539091. The next prime is 4539121. The reversal of 4539109 is 9019354.

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 + 2259009 = 1510^2 + 1503^2 .

It is a cyclic number.

It is not a de Polignac number, because 4539109 - 2¹¹ = 4537061 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4539149) 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, 78232 + ... + 78289.

It is an arithmetic number, because the mean of its divisors is an integer number (1173915).

Almost surely, 2^4539109 is an apocalyptic number.

It is an amenable number.

4539109 is a deficient number, since it is larger than the sum of its proper divisors (156551).

4539109 is a wasteful number, since it uses less digits than its factorization.

4539109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156550.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 4539109 is about 2130.5184814969. The cubic root of 4539109 is about 165.5732615896.

The spelling of 4539109 in words is "four million, five hundred thirty-nine thousand, one hundred nine".