5169221 has 4 divisors (see below), whose sum is σ = 5347500. Its totient is φ = 4990944.

The previous prime is 5169211. The next prime is 5169247. The reversal of 5169221 is 1229615.

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 4056196 + 1113025 = 2014^2 + 1055^2 .

It is a cyclic number.

It is not a de Polignac number, because 5169221 - 2¹⁴ = 5152837 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 (5169211) 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, 89096 + ... + 89153.

It is an arithmetic number, because the mean of its divisors is an integer number (1336875).

Almost surely, 2^5169221 is an apocalyptic number.

It is an amenable number.

5169221 is a deficient number, since it is larger than the sum of its proper divisors (178279).

5169221 is a wasteful number, since it uses less digits than its factorization.

5169221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178278.

The product of its digits is 1080, while the sum is 26.

The square root of 5169221 is about 2273.5920918230. The cubic root of 5169221 is about 172.9053242540.

The spelling of 5169221 in words is "five million, one hundred sixty-nine thousand, two hundred twenty-one".