5271209 has 8 divisors (see below), whose sum is σ = 5678592. Its totient is φ = 4878720.

The previous prime is 5271199. The next prime is 5271223. The reversal of 5271209 is 9021725.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5271209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5271289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2984 + ... + 4409.

It is an arithmetic number, because the mean of its divisors is an integer number (709824).

Almost surely, 2^5271209 is an apocalyptic number.

It is an amenable number.

5271209 is a deficient number, since it is larger than the sum of its proper divisors (407383).

5271209 is a wasteful number, since it uses less digits than its factorization.

5271209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7447.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 5271209 is about 2295.9113658850. The cubic root of 5271209 is about 174.0350592146.

The spelling of 5271209 in words is "five million, two hundred seventy-one thousand, two hundred nine".