5173121 has 4 divisors (see below), whose sum is σ = 5180244. Its totient is φ = 5166000.

The previous prime is 5173097. The next prime is 5173193. The reversal of 5173121 is 1213715.

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 2283121 + 2890000 = 1511^2 + 1700^2 .

It is a cyclic number.

It is not a de Polignac number, because 5173121 - 2⁶ = 5173057 is a prime.

It is a super-2 number, since 2×5173121² = 53522361761282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5173093 and 5173102.

It is not an unprimeable number, because it can be changed into a prime (5103121) 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 3 ways as a sum of consecutive naturals, for example, 2330 + ... + 3971.

It is an arithmetic number, because the mean of its divisors is an integer number (1295061).

Almost surely, 2^5173121 is an apocalyptic number.

It is an amenable number.

5173121 is a deficient number, since it is larger than the sum of its proper divisors (7123).

5173121 is an equidigital number, since it uses as much as digits as its factorization.

5173121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7122.

The product of its digits is 210, while the sum is 20.

The square root of 5173121 is about 2274.4496037503. The cubic root of 5173121 is about 172.9487970358.

Adding to 5173121 its reverse (1213715), we get a palindrome (6386836).

The spelling of 5173121 in words is "five million, one hundred seventy-three thousand, one hundred twenty-one".