244025213 has 2 divisors, whose sum is σ = 244025214. Its totient is φ = 244025212.

The previous prime is 244025209. The next prime is 244025219. The reversal of 244025213 is 312520442.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 243297604 + 727609 = 15598^2 + 853^2 .

It is a cyclic number.

It is not a de Polignac number, because 244025213 - 2² = 244025209 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244025219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122012606 + 122012607.

It is an arithmetic number, because the mean of its divisors is an integer number (122012607).

Almost surely, 2^244025213 is an apocalyptic number.

It is an amenable number.

244025213 is a deficient number, since it is larger than the sum of its proper divisors (1).

244025213 is an equidigital number, since it uses as much as digits as its factorization.

244025213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 244025213 is about 15621.3063794293. The cubic root of 244025213 is about 624.9014995704.

Adding to 244025213 its reverse (312520442), we get a palindrome (556545655).

The spelling of 244025213 in words is "two hundred forty-four million, twenty-five thousand, two hundred thirteen".