138132859 has 8 divisors (see below), whose sum is σ = 141249600. Its totient is φ = 135023616.

The previous prime is 138132857. The next prime is 138132901. The reversal of 138132859 is 958231831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 138132859 - 2¹ = 138132857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138132851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52917 + ... + 55465.

It is an arithmetic number, because the mean of its divisors is an integer number (17656200).

Almost surely, 2^138132859 is an apocalyptic number.

138132859 is a deficient number, since it is larger than the sum of its proper divisors (3116741).

138132859 is a wasteful number, since it uses less digits than its factorization.

138132859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3749.

The product of its digits is 51840, while the sum is 40.

The square root of 138132859 is about 11752.9936186488. The cubic root of 138132859 is about 516.9307098980.

The spelling of 138132859 in words is "one hundred thirty-eight million, one hundred thirty-two thousand, eight hundred fifty-nine".