5212409 has 2 divisors, whose sum is σ = 5212410. Its totient is φ = 5212408.

The previous prime is 5212393. The next prime is 5212447. The reversal of 5212409 is 9042125.

5212409 is nontrivially palindromic in base 2.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4818025 + 394384 = 2195^2 + 628^2 .

It is a cyclic number.

It is not a de Polignac number, because 5212409 - 2⁴ = 5212393 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5212469) 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 as a sum of consecutive naturals, namely, 2606204 + 2606205.

It is an arithmetic number, because the mean of its divisors is an integer number (2606205).

Almost surely, 2^5212409 is an apocalyptic number.

It is an amenable number.

5212409 is a deficient number, since it is larger than the sum of its proper divisors (1).

5212409 is an equidigital number, since it uses as much as digits as its factorization.

5212409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 5212409 is about 2283.0700821482. The cubic root of 5212409 is about 173.3855213498.

The spelling of 5212409 in words is "five million, two hundred twelve thousand, four hundred nine".