102038689 has 2 divisors, whose sum is σ = 102038690. Its totient is φ = 102038688.

The previous prime is 102038681. The next prime is 102038693. The reversal of 102038689 is 986830201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80694289 + 21344400 = 8983^2 + 4620^2 .

It is a cyclic number.

It is not a de Polignac number, because 102038689 - 2³ = 102038681 is a prime.

It is not a weakly prime, because it can be changed into another prime (102038681) 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, 51019344 + 51019345.

It is an arithmetic number, because the mean of its divisors is an integer number (51019345).

Almost surely, 2^102038689 is an apocalyptic number.

It is an amenable number.

102038689 is a deficient number, since it is larger than the sum of its proper divisors (1).

102038689 is an equidigital number, since it uses as much as digits as its factorization.

102038689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 102038689 is about 10101.4201476822. The cubic root of 102038689 is about 467.2919397884.

The spelling of 102038689 in words is "one hundred two million, thirty-eight thousand, six hundred eighty-nine".