244144139 has 2 divisors, whose sum is σ = 244144140. Its totient is φ = 244144138.

The previous prime is 244144097. The next prime is 244144163. The reversal of 244144139 is 931441442.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-244144139 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (244144039) 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, 122072069 + 122072070.

It is an arithmetic number, because the mean of its divisors is an integer number (122072070).

Almost surely, 2^244144139 is an apocalyptic number.

244144139 is a deficient number, since it is larger than the sum of its proper divisors (1).

244144139 is an equidigital number, since it uses as much as digits as its factorization.

244144139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 32.

The square root of 244144139 is about 15625.1124475954. The cubic root of 244144139 is about 625.0029985989.

The spelling of 244144139 in words is "two hundred forty-four million, one hundred forty-four thousand, one hundred thirty-nine".