5715209 has 2 divisors, whose sum is σ = 5715210. Its totient is φ = 5715208.

The previous prime is 5715187. The next prime is 5715211. The reversal of 5715209 is 9025175.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3763600 + 1951609 = 1940^2 + 1397^2 .

It is a cyclic number.

It is not a de Polignac number, because 5715209 - 2¹² = 5711113 is a prime.

It is a super-2 number, since 2×5715209² = 65327227827362, which contains 22 as substring.

Together with 5715211, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5715239) 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 as a sum of consecutive naturals, namely, 2857604 + 2857605.

It is an arithmetic number, because the mean of its divisors is an integer number (2857605).

Almost surely, 2^5715209 is an apocalyptic number.

It is an amenable number.

5715209 is a deficient number, since it is larger than the sum of its proper divisors (1).

5715209 is an equidigital number, since it uses as much as digits as its factorization.

5715209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 5715209 is about 2390.6503299312. The cubic root of 5715209 is about 178.7903353317.

The spelling of 5715209 in words is "five million, seven hundred fifteen thousand, two hundred nine".