138359 has 8 divisors (see below), whose sum is σ = 154560. Its totient is φ = 122976.

The previous prime is 138349. The next prime is 138371. The reversal of 138359 is 953831.

138359 = T₇ + T₈ + ... + T₉₃.

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 138359 - 2¹² = 134263 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138319) 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, 194 + ... + 560.

It is an arithmetic number, because the mean of its divisors is an integer number (19320).

2¹³⁸³⁵⁹ is an apocalyptic number.

138359 is a deficient number, since it is larger than the sum of its proper divisors (16201).

138359 is a wasteful number, since it uses less digits than its factorization.

138359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409.

The product of its digits is 3240, while the sum is 29.

The square root of 138359 is about 371.9663963317. The cubic root of 138359 is about 51.7212649796.

The spelling of 138359 in words is "one hundred thirty-eight thousand, three hundred fifty-nine".