244120135409 has 2 divisors, whose sum is σ = 244120135410. Its totient is φ = 244120135408.

The previous prime is 244120135379. The next prime is 244120135417. The reversal of 244120135409 is 904531021442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 168569367184 + 75550768225 = 410572^2 + 274865^2 .

It is a cyclic number.

It is not a de Polignac number, because 244120135409 - 2²⁰ = 244119086833 is a prime.

It is not a weakly prime, because it can be changed into another prime (244120135709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122060067704 + 122060067705.

It is an arithmetic number, because the mean of its divisors is an integer number (122060067705).

Almost surely, 2^244120135409 is an apocalyptic number.

It is an amenable number.

244120135409 is a deficient number, since it is larger than the sum of its proper divisors (1).

244120135409 is an equidigital number, since it uses as much as digits as its factorization.

244120135409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 244120135409 in words is "two hundred forty-four billion, one hundred twenty million, one hundred thirty-five thousand, four hundred nine".