244140613 has 2 divisors, whose sum is σ = 244140614. Its totient is φ = 244140612.

The previous prime is 244140601. The next prime is 244140683. The reversal of 244140613 is 316041442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200024449 + 44116164 = 14143^2 + 6642^2 .

It is a cyclic number.

It is not a de Polignac number, because 244140613 - 2⁵ = 244140581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244140683) 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, 122070306 + 122070307.

It is an arithmetic number, because the mean of its divisors is an integer number (122070307).

Almost surely, 2^244140613 is an apocalyptic number.

It is an amenable number.

244140613 is a deficient number, since it is larger than the sum of its proper divisors (1).

244140613 is an equidigital number, since it uses as much as digits as its factorization.

244140613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 244140613 is about 15624.9996160000. Note that the first 3 decimals coincide. The cubic root of 244140613 is about 624.9999897600. Note that the first 4 decimals are identical.

The spelling of 244140613 in words is "two hundred forty-four million, one hundred forty thousand, six hundred thirteen".