138252059 has 12 divisors (see below), whose sum is σ = 153452208. Its totient is φ = 124452240.

The previous prime is 138252031. The next prime is 138252061. The reversal of 138252059 is 950252831.

It is a de Polignac number, because none of the positive numbers 2^k-138252059 is a prime.

It is a super-2 number, since 2×138252059² = 38227263635478962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138257059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6917 + ... + 18009.

It is an arithmetic number, because the mean of its divisors is an integer number (12787684).

Almost surely, 2^138252059 is an apocalyptic number.

138252059 is a deficient number, since it is larger than the sum of its proper divisors (15200149).

138252059 is a wasteful number, since it uses less digits than its factorization.

138252059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11218 (or 11207 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 138252059 is about 11758.0635735652. The cubic root of 138252059 is about 517.0793600825.

The spelling of 138252059 in words is "one hundred thirty-eight million, two hundred fifty-two thousand, fifty-nine".