102000389 has 2 divisors, whose sum is σ = 102000390. Its totient is φ = 102000388.

The previous prime is 102000373. The next prime is 102000397. The reversal of 102000389 is 983000201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100600900 + 1399489 = 10030^2 + 1183^2 .

It is a cyclic number.

It is not a de Polignac number, because 102000389 - 2⁴ = 102000373 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102000359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51000194 + 51000195.

It is an arithmetic number, because the mean of its divisors is an integer number (51000195).

Almost surely, 2^102000389 is an apocalyptic number.

It is an amenable number.

102000389 is a deficient number, since it is larger than the sum of its proper divisors (1).

102000389 is an equidigital number, since it uses as much as digits as its factorization.

102000389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 102000389 is about 10099.5241967134. The cubic root of 102000389 is about 467.2334668007.

The spelling of 102000389 in words is "one hundred two million, three hundred eighty-nine", and thus it is an aban number.