244534139 has 2 divisors, whose sum is σ = 244534140. Its totient is φ = 244534138.

The previous prime is 244534109. The next prime is 244534141. The reversal of 244534139 is 931435442.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 244534139 - 2¹⁶ = 244468603 is a prime.

Together with 244534141, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_13396265 and since 244534139 and 13396265 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 244534099 and 244534108.

It is not a weakly prime, because it can be changed into another prime (244534109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122267069 + 122267070.

It is an arithmetic number, because the mean of its divisors is an integer number (122267070).

Almost surely, 2^244534139 is an apocalyptic number.

244534139 is a deficient number, since it is larger than the sum of its proper divisors (1).

244534139 is an equidigital number, since it uses as much as digits as its factorization.

244534139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 35.

The square root of 244534139 is about 15637.5873778534. The cubic root of 244534139 is about 625.3356183576.

The spelling of 244534139 in words is "two hundred forty-four million, five hundred thirty-four thousand, one hundred thirty-nine".