138114469 has 2 divisors, whose sum is σ = 138114470. Its totient is φ = 138114468.

The previous prime is 138114463. The next prime is 138114497. The reversal of 138114469 is 964411831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73102500 + 65011969 = 8550^2 + 8063^2 .

It is a cyclic number.

It is not a de Polignac number, because 138114469 - 2⁵ = 138114437 is a prime.

It is a super-2 number, since 2×138114469² = 38151213094303922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138114463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69057234 + 69057235.

It is an arithmetic number, because the mean of its divisors is an integer number (69057235).

Almost surely, 2^138114469 is an apocalyptic number.

It is an amenable number.

138114469 is a deficient number, since it is larger than the sum of its proper divisors (1).

138114469 is an equidigital number, since it uses as much as digits as its factorization.

138114469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 37.

The square root of 138114469 is about 11752.2112387414. The cubic root of 138114469 is about 516.9077687535.

The spelling of 138114469 in words is "one hundred thirty-eight million, one hundred fourteen thousand, four hundred sixty-nine".