139930 has 16 divisors (see below), whose sum is σ = 288000. Its totient is φ = 47952.

The previous prime is 139921. The next prime is 139939. The reversal of 139930 is 39931.

It is an interprime number because it is at equal distance from previous prime (139921) and next prime (139939).

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 139895 and 139904.

It is not an unprimeable number, because it can be changed into a prime (139939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 930 + ... + 1069.

It is an arithmetic number, because the mean of its divisors is an integer number (18000).

2¹³⁹⁹³⁰ is an apocalyptic number.

139930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139930 is an abundant number, since it is smaller than the sum of its proper divisors (148070).

It is a weird number, because it is abundant, but not a pseudoperfect number.

139930 is a wasteful number, since it uses less digits than its factorization.

139930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2013.

The product of its (nonzero) digits is 729, while the sum is 25.

The square root of 139930 is about 374.0721855471. The cubic root of 139930 is about 51.9162854189.

Subtracting from 139930 its reverse (39931), we obtain a palindrome (99999).

The spelling of 139930 in words is "one hundred thirty-nine thousand, nine hundred thirty".