138059259 has 16 divisors (see below), whose sum is σ = 203076384. Its totient is φ = 82886400.

The previous prime is 138059249. The next prime is 138059267. The reversal of 138059259 is 952950831.

It is not a de Polignac number, because 138059259 - 2¹⁷ = 137928187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 138059259.

It is not an unprimeable number, because it can be changed into a prime (138059209) 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 in 15 ways as a sum of consecutive naturals, for example, 41572 + ... + 44769.

It is an arithmetic number, because the mean of its divisors is an integer number (12692274).

Almost surely, 2^138059259 is an apocalyptic number.

138059259 is a deficient number, since it is larger than the sum of its proper divisors (65017125).

138059259 is a wasteful number, since it uses less digits than its factorization.

138059259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86398.

The product of its (nonzero) digits is 97200, while the sum is 42.

The square root of 138059259 is about 11749.8620842970. The cubic root of 138059259 is about 516.8388831843.

The spelling of 138059259 in words is "one hundred thirty-eight million, fifty-nine thousand, two hundred fifty-nine".