5172109 has 8 divisors (see below), whose sum is σ = 5355000. Its totient is φ = 4992000.

The previous prime is 5172107. The next prime is 5172127. The reversal of 5172109 is 9012715.

5172109 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 635209 + 4536900 = 797^2 + 2130^2 .

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 5172109 - 2¹ = 5172107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5172107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3517 + ... + 4765.

It is an arithmetic number, because the mean of its divisors is an integer number (669375).

Almost surely, 2^5172109 is an apocalyptic number.

It is an amenable number.

5172109 is a deficient number, since it is larger than the sum of its proper divisors (182891).

5172109 is a wasteful number, since it uses less digits than its factorization.

5172109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 5172109 is about 2274.2271214635. The cubic root of 5172109 is about 172.9375185060.

Subtracting 5172109 from its reverse (9012715), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 5172109 in words is "five million, one hundred seventy-two thousand, one hundred nine".