102444239 has 2 divisors, whose sum is σ = 102444240. Its totient is φ = 102444238.

The previous prime is 102444217. The next prime is 102444241. The reversal of 102444239 is 932444201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102444239 - 2²⁰ = 101395663 is a prime.

Together with 102444241, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102444259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51222119 + 51222120.

It is an arithmetic number, because the mean of its divisors is an integer number (51222120).

Almost surely, 2^102444239 is an apocalyptic number.

102444239 is a deficient number, since it is larger than the sum of its proper divisors (1).

102444239 is an equidigital number, since it uses as much as digits as its factorization.

102444239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 102444239 is about 10121.4741515256. The cubic root of 102444239 is about 467.9102011334.

The spelling of 102444239 in words is "one hundred two million, four hundred forty-four thousand, two hundred thirty-nine".