138070 has 8 divisors (see below), whose sum is σ = 248544. Its totient is φ = 55224.

The previous prime is 138059. The next prime is 138071. The reversal of 138070 is 70831.

138070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6894 + ... + 6913.

It is an arithmetic number, because the mean of its divisors is an integer number (31068).

2¹³⁸⁰⁷⁰ is an apocalyptic number.

138070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138070 is a deficient number, since it is larger than the sum of its proper divisors (110474).

138070 is a wasteful number, since it uses less digits than its factorization.

138070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13814.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 138070 is about 371.5777173082. The cubic root of 138070 is about 51.6852286179.

The spelling of 138070 in words is "one hundred thirty-eight thousand, seventy".