138304763 has 2 divisors, whose sum is σ = 138304764. Its totient is φ = 138304762.

The previous prime is 138304739. The next prime is 138304769. The reversal of 138304763 is 367403831.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138304763 is a prime.

It is not a weakly prime, because it can be changed into another prime (138304769) 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, 69152381 + 69152382.

It is an arithmetic number, because the mean of its divisors is an integer number (69152382).

Almost surely, 2^138304763 is an apocalyptic number.

138304763 is a deficient number, since it is larger than the sum of its proper divisors (1).

138304763 is an equidigital number, since it uses as much as digits as its factorization.

138304763 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 138304763 is about 11760.3045453764. The cubic root of 138304763 is about 517.1450581717.

The spelling of 138304763 in words is "one hundred thirty-eight million, three hundred four thousand, seven hundred sixty-three".