244124509 has 2 divisors, whose sum is σ = 244124510. Its totient is φ = 244124508.

The previous prime is 244124467. The next prime is 244124513. The reversal of 244124509 is 905421442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129163225 + 114961284 = 11365^2 + 10722^2 .

It is a cyclic number.

It is not a de Polignac number, because 244124509 - 2⁷ = 244124381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244124609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122062254 + 122062255.

It is an arithmetic number, because the mean of its divisors is an integer number (122062255).

Almost surely, 2^244124509 is an apocalyptic number.

It is an amenable number.

244124509 is a deficient number, since it is larger than the sum of its proper divisors (1).

244124509 is an equidigital number, since it uses as much as digits as its factorization.

244124509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 244124509 is about 15624.4842794890. The cubic root of 244124509 is about 624.9862473774.

The spelling of 244124509 in words is "two hundred forty-four million, one hundred twenty-four thousand, five hundred nine".