5172120 has 64 divisors (see below), whose sum is σ = 17244000. Its totient is φ = 1378944.

The previous prime is 5172107. The next prime is 5172127. The reversal of 5172120 is 212715.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 5172093 and 5172102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5172127) 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 15 ways as a sum of consecutive naturals, for example, 1315 + ... + 3474.

Almost surely, 2^5172120 is an apocalyptic number.

It is an amenable number.

5172120 is an abundant number, since it is smaller than the sum of its proper divisors (12071880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5172120 is a wasteful number, since it uses less digits than its factorization.

5172120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4809 (or 4799 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 5172120 is about 2274.2295398662. The cubic root of 5172120 is about 172.9376411066.

Adding to 5172120 its reverse (212715), we get a palindrome (5384835).

The spelling of 5172120 in words is "five million, one hundred seventy-two thousand, one hundred twenty".