138710 has 32 divisors (see below), whose sum is σ = 296352. Its totient is φ = 46080.

The previous prime is 138683. The next prime is 138727. The reversal of 138710 is 17831.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1382 + ... + 1478.

It is an arithmetic number, because the mean of its divisors is an integer number (9261).

2¹³⁸⁷¹⁰ is an apocalyptic number.

138710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138710 is an abundant number, since it is smaller than the sum of its proper divisors (157642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138710 is a wasteful number, since it uses less digits than its factorization.

138710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 138710 is about 372.4379142891. The cubic root of 138710 is about 51.7649649051.

It can be divided in two parts, 138 and 710, that added together give a palindrome (848).

The spelling of 138710 in words is "one hundred thirty-eight thousand, seven hundred ten".