244443139 has 2 divisors, whose sum is σ = 244443140. Its totient is φ = 244443138.

The previous prime is 244443097. The next prime is 244443181. The reversal of 244443139 is 931344442.

It is a balanced prime because it is at equal distance from previous prime (244443097) and next prime (244443181).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-244443139 is a prime.

It is not a weakly prime, because it can be changed into another prime (244443739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122221569 + 122221570.

It is an arithmetic number, because the mean of its divisors is an integer number (122221570).

Almost surely, 2^244443139 is an apocalyptic number.

244443139 is a deficient number, since it is larger than the sum of its proper divisors (1).

244443139 is an equidigital number, since it uses as much as digits as its factorization.

244443139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 34.

The square root of 244443139 is about 15634.6774511021. The cubic root of 244443139 is about 625.2580387310.

The spelling of 244443139 in words is "two hundred forty-four million, four hundred forty-three thousand, one hundred thirty-nine".