139916 has 24 divisors (see below), whose sum is σ = 295680. Its totient is φ = 56592.

The previous prime is 139907. The next prime is 139921. The reversal of 139916 is 619931.

It is a plaindrome in base 16.

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, 401 + ... + 663.

It is an arithmetic number, because the mean of its divisors is an integer number (12320).

2¹³⁹⁹¹⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147840).

139916 is an abundant number, since it is smaller than the sum of its proper divisors (155764).

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

139916 is a wasteful number, since it uses less digits than its factorization.

139916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293 (or 291 counting only the distinct ones).

The product of its digits is 1458, while the sum is 29.

The square root of 139916 is about 374.0534721133. The cubic root of 139916 is about 51.9145539526.

The spelling of 139916 in words is "one hundred thirty-nine thousand, nine hundred sixteen".