138950 has 24 divisors (see below), whose sum is σ = 296112. Its totient is φ = 47520.

The previous prime is 138937. The next prime is 138959. The reversal of 138950 is 59831.

138950 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138959) by changing a digit.

138950 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152 + ... + 548.

It is an arithmetic number, because the mean of its divisors is an integer number (12338).

2¹³⁸⁹⁵⁰ is an apocalyptic number.

138950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138950 is an abundant number, since it is smaller than the sum of its proper divisors (157162).

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

138950 is a wasteful number, since it uses less digits than its factorization.

138950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416 (or 411 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 138950 is about 372.7599763923. The cubic root of 138950 is about 51.7948027761.

The spelling of 138950 in words is "one hundred thirty-eight thousand, nine hundred fifty".