244212109 has 2 divisors, whose sum is σ = 244212110. Its totient is φ = 244212108.

The previous prime is 244212049. The next prime is 244212127. The reversal of 244212109 is 901212442.

244212109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 159516900 + 84695209 = 12630^2 + 9203^2 .

It is a cyclic number.

It is not a de Polignac number, because 244212109 - 2¹³ = 244203917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244212139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122106054 + 122106055.

It is an arithmetic number, because the mean of its divisors is an integer number (122106055).

Almost surely, 2^244212109 is an apocalyptic number.

It is an amenable number.

244212109 is a deficient number, since it is larger than the sum of its proper divisors (1).

244212109 is an equidigital number, since it uses as much as digits as its factorization.

244212109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 244212109 is about 15627.2873205813. The cubic root of 244212109 is about 625.0609937274.

The spelling of 244212109 in words is "two hundred forty-four million, two hundred twelve thousand, one hundred nine".