138814 has 16 divisors (see below), whose sum is σ = 236880. Its totient is φ = 60480.

The previous prime is 138799. The next prime is 138821. The reversal of 138814 is 418831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354 + ... + 634.

It is an arithmetic number, because the mean of its divisors is an integer number (14805).

2¹³⁸⁸¹⁴ is an apocalyptic number.

138814 is a deficient number, since it is larger than the sum of its proper divisors (98066).

138814 is a wasteful number, since it uses less digits than its factorization.

138814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315.

The product of its digits is 768, while the sum is 25.

The square root of 138814 is about 372.5775087146. The cubic root of 138814 is about 51.7778988715. Note that the first 3 decimals are identical.

The spelling of 138814 in words is "one hundred thirty-eight thousand, eight hundred fourteen".