138703267 has 2 divisors, whose sum is σ = 138703268. Its totient is φ = 138703266.

The previous prime is 138703237. The next prime is 138703273. The reversal of 138703267 is 762307831.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138703267 is a prime.

It is not a weakly prime, because it can be changed into another prime (138703217) 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, 69351633 + 69351634.

It is an arithmetic number, because the mean of its divisors is an integer number (69351634).

Almost surely, 2^138703267 is an apocalyptic number.

138703267 is a deficient number, since it is larger than the sum of its proper divisors (1).

138703267 is an equidigital number, since it uses as much as digits as its factorization.

138703267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 138703267 is about 11777.2351169534. The cubic root of 138703267 is about 517.6412733237.

The spelling of 138703267 in words is "one hundred thirty-eight million, seven hundred three thousand, two hundred sixty-seven".