139850 has 12 divisors (see below), whose sum is σ = 260214. Its totient is φ = 55920.

The previous prime is 139837. The next prime is 139861. The reversal of 139850 is 58931.

It can be written as a sum of positive squares in 3 ways, for example, as 117649 + 22201 = 343^2 + 149^2 .

It is a plaindrome in base 16.

It is an unprimeable number.

139850 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 5 ways as a sum of consecutive naturals, for example, 1349 + ... + 1448.

2¹³⁹⁸⁵⁰ is an apocalyptic number.

139850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139850 is a deficient number, since it is larger than the sum of its proper divisors (120364).

139850 is a wasteful number, since it uses less digits than its factorization.

139850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2809 (or 2804 counting only the distinct ones).

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

The square root of 139850 is about 373.9652390263. The cubic root of 139850 is about 51.9063897697.

Adding to 139850 its sum of digits (26), we get a square (139876 = 374²).

It can be divided in two parts, 139 and 850, that added together give a palindrome (989).

The spelling of 139850 in words is "one hundred thirty-nine thousand, eight hundred fifty".