138114541 has 2 divisors, whose sum is σ = 138114542. Its totient is φ = 138114540.

The previous prime is 138114539. The next prime is 138114547. The reversal of 138114541 is 145411831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99102025 + 39012516 = 9955^2 + 6246^2 .

It is an emirp because it is prime and its reverse (145411831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 138114541 - 2¹ = 138114539 is a prime.

Together with 138114539, 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 (138114547) 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, 69057270 + 69057271.

It is an arithmetic number, because the mean of its divisors is an integer number (69057271).

Almost surely, 2^138114541 is an apocalyptic number.

It is an amenable number.

138114541 is a deficient number, since it is larger than the sum of its proper divisors (1).

138114541 is an equidigital number, since it uses as much as digits as its factorization.

138114541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1920, while the sum is 28.

The square root of 138114541 is about 11752.2143019943. The cubic root of 138114541 is about 516.9078585760.

The spelling of 138114541 in words is "one hundred thirty-eight million, one hundred fourteen thousand, five hundred forty-one".