138851059 has 2 divisors, whose sum is σ = 138851060. Its totient is φ = 138851058.

The previous prime is 138851057. The next prime is 138851093. The reversal of 138851059 is 950158831.

138851059 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 138851059 - 2¹ = 138851057 is a prime.

Together with 138851057, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (138851057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69425529 + 69425530.

It is an arithmetic number, because the mean of its divisors is an integer number (69425530).

Almost surely, 2^138851059 is an apocalyptic number.

138851059 is a deficient number, since it is larger than the sum of its proper divisors (1).

138851059 is an equidigital number, since it uses as much as digits as its factorization.

138851059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 40.

The square root of 138851059 is about 11783.5079242134. The cubic root of 138851059 is about 517.8250615519.

The spelling of 138851059 in words is "one hundred thirty-eight million, eight hundred fifty-one thousand, fifty-nine".