102430439 has 2 divisors, whose sum is σ = 102430440. Its totient is φ = 102430438.

The previous prime is 102430409. The next prime is 102430441. The reversal of 102430439 is 934034201.

It is a strong prime.

It is an emirp because it is prime and its reverse (934034201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102430439 - 2⁸ = 102430183 is a prime.

It is a Sophie Germain prime.

Together with 102430441, 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 (102430409) 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, 51215219 + 51215220.

It is an arithmetic number, because the mean of its divisors is an integer number (51215220).

Almost surely, 2^102430439 is an apocalyptic number.

102430439 is a deficient number, since it is larger than the sum of its proper divisors (1).

102430439 is an equidigital number, since it uses as much as digits as its factorization.

102430439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 102430439 is about 10120.7924096881. The cubic root of 102430439 is about 467.8891898632.

The spelling of 102430439 in words is "one hundred two million, four hundred thirty thousand, four hundred thirty-nine".