138414043 has 2 divisors, whose sum is σ = 138414044. Its totient is φ = 138414042.

The previous prime is 138414019. The next prime is 138414047. The reversal of 138414043 is 340414831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138414043 - 2¹³ = 138405851 is a prime.

It is not a weakly prime, because it can be changed into another prime (138414047) 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, 69207021 + 69207022.

It is an arithmetic number, because the mean of its divisors is an integer number (69207022).

Almost surely, 2^138414043 is an apocalyptic number.

138414043 is a deficient number, since it is larger than the sum of its proper divisors (1).

138414043 is an equidigital number, since it uses as much as digits as its factorization.

138414043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 138414043 is about 11764.9497661486. The cubic root of 138414043 is about 517.2812278228.

Adding to 138414043 its reverse (340414831), we get a palindrome (478828874).

The spelling of 138414043 in words is "one hundred thirty-eight million, four hundred fourteen thousand, forty-three".