138469307 has 2 divisors, whose sum is σ = 138469308. Its totient is φ = 138469306.

The previous prime is 138469297. The next prime is 138469339. The reversal of 138469307 is 703964831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 138469307 - 2¹⁰ = 138468283 is a prime.

It is not a weakly prime, because it can be changed into another prime (138469907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69234653 + 69234654.

It is an arithmetic number, because the mean of its divisors is an integer number (69234654).

Almost surely, 2^138469307 is an apocalyptic number.

138469307 is a deficient number, since it is larger than the sum of its proper divisors (1).

138469307 is an equidigital number, since it uses as much as digits as its factorization.

138469307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 138469307 is about 11767.2982030711. The cubic root of 138469307 is about 517.3500629048.

The spelling of 138469307 in words is "one hundred thirty-eight million, four hundred sixty-nine thousand, three hundred seven".