138565183 has 2 divisors, whose sum is σ = 138565184. Its totient is φ = 138565182.

The previous prime is 138565151. The next prime is 138565201. The reversal of 138565183 is 381565831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138565183 - 2⁵ = 138565151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138562183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69282591 + 69282592.

It is an arithmetic number, because the mean of its divisors is an integer number (69282592).

Almost surely, 2^138565183 is an apocalyptic number.

138565183 is a deficient number, since it is larger than the sum of its proper divisors (1).

138565183 is an equidigital number, since it uses as much as digits as its factorization.

138565183 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 40.

The square root of 138565183 is about 11771.3713304780. The cubic root of 138565183 is about 517.4694395670.

The spelling of 138565183 in words is "one hundred thirty-eight million, five hundred sixty-five thousand, one hundred eighty-three".