138803017 has 2 divisors, whose sum is σ = 138803018. Its totient is φ = 138803016.

The previous prime is 138802997. The next prime is 138803033. The reversal of 138803017 is 710308831.

138803017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91317136 + 47485881 = 9556^2 + 6891^2 .

It is an emirp because it is prime and its reverse (710308831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 138803017 - 2¹¹ = 138800969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 138803017.

It is not a weakly prime, because it can be changed into another prime (138803047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69401508 + 69401509.

It is an arithmetic number, because the mean of its divisors is an integer number (69401509).

Almost surely, 2^138803017 is an apocalyptic number.

It is an amenable number.

138803017 is a deficient number, since it is larger than the sum of its proper divisors (1).

138803017 is an equidigital number, since it uses as much as digits as its factorization.

138803017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 138803017 is about 11781.4692207721. The cubic root of 138803017 is about 517.7653327521.

The spelling of 138803017 in words is "one hundred thirty-eight million, eight hundred three thousand, seventeen".