138874 has 8 divisors (see below), whose sum is σ = 217440. Its totient is φ = 66396.

The previous prime is 138869. The next prime is 138883. The reversal of 138874 is 478831.

It is a happy number.

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

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1464 + ... + 1555.

It is an arithmetic number, because the mean of its divisors is an integer number (27180).

2¹³⁸⁸⁷⁴ is an apocalyptic number.

138874 is a deficient number, since it is larger than the sum of its proper divisors (78566).

138874 is a wasteful number, since it uses less digits than its factorization.

138874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3044.

The product of its digits is 5376, while the sum is 31.

The square root of 138874 is about 372.6580201740. The cubic root of 138874 is about 51.7853578369.

The spelling of 138874 in words is "one hundred thirty-eight thousand, eight hundred seventy-four".