139950 has 36 divisors (see below), whose sum is σ = 377208. Its totient is φ = 37200.

The previous prime is 139943. The next prime is 139967. The reversal of 139950 is 59931.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

139950 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 17 ways as a sum of consecutive naturals, for example, 295 + ... + 605.

It is an arithmetic number, because the mean of its divisors is an integer number (10478).

2¹³⁹⁹⁵⁰ is an apocalyptic number.

139950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 139950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188604).

139950 is an abundant number, since it is smaller than the sum of its proper divisors (237258).

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

139950 is a wasteful number, since it uses less digits than its factorization.

139950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 1215, while the sum is 27.

The square root of 139950 is about 374.0989174002. The cubic root of 139950 is about 51.9187587419.

It can be divided in two parts, 139 and 950, that added together give a square (1089 = 33²).

The spelling of 139950 in words is "one hundred thirty-nine thousand, nine hundred fifty".