138267763 has 2 divisors, whose sum is σ = 138267764. Its totient is φ = 138267762.

The previous prime is 138267761. The next prime is 138267793. The reversal of 138267763 is 367762831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 138267763 - 2¹ = 138267761 is a prime.

Together with 138267761, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (138267761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69133881 + 69133882.

It is an arithmetic number, because the mean of its divisors is an integer number (69133882).

Almost surely, 2^138267763 is an apocalyptic number.

138267763 is a deficient number, since it is larger than the sum of its proper divisors (1).

138267763 is an equidigital number, since it uses as much as digits as its factorization.

138267763 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 43.

The square root of 138267763 is about 11758.7313516382. The cubic root of 138267763 is about 517.0989376254.

The spelling of 138267763 in words is "one hundred thirty-eight million, two hundred sixty-seven thousand, seven hundred sixty-three".