5172187 has 2 divisors, whose sum is σ = 5172188. Its totient is φ = 5172186.

The previous prime is 5172163. The next prime is 5172197. The reversal of 5172187 is 7812715.

It is a happy number.

5172187 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5172187 is a prime.

5172187 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (5172107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2586093 + 2586094.

It is an arithmetic number, because the mean of its divisors is an integer number (2586094).

Almost surely, 2^5172187 is an apocalyptic number.

5172187 is a deficient number, since it is larger than the sum of its proper divisors (1).

5172187 is an equidigital number, since it uses as much as digits as its factorization.

5172187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3920, while the sum is 31.

The square root of 5172187 is about 2274.2442700818. The cubic root of 5172187 is about 172.9383878521.

It can be divided in two parts, 517 and 2187, that added together give a square (2704 = 52²).

The spelling of 5172187 in words is "five million, one hundred seventy-two thousand, one hundred eighty-seven".