138353143 has 2 divisors, whose sum is σ = 138353144. Its totient is φ = 138353142.

The previous prime is 138353141. The next prime is 138353153. The reversal of 138353143 is 341353831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 138353143 - 2¹ = 138353141 is a prime.

Together with 138353141, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138353141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69176571 + 69176572.

It is an arithmetic number, because the mean of its divisors is an integer number (69176572).

Almost surely, 2^138353143 is an apocalyptic number.

138353143 is a deficient number, since it is larger than the sum of its proper divisors (1).

138353143 is an equidigital number, since it uses as much as digits as its factorization.

138353143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 31.

The square root of 138353143 is about 11762.3612850482. The cubic root of 138353143 is about 517.2053514945.

The spelling of 138353143 in words is "one hundred thirty-eight million, three hundred fifty-three thousand, one hundred forty-three".