139839700 has 216 divisors, whose sum is σ = 413751296. Its totient is φ = 39916800.

The previous prime is 139839659. The next prime is 139839709. The reversal of 139839700 is 7938931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139839709) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1101037 + ... + 1101163.

Almost surely, 2^139839700 is an apocalyptic number.

139839700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139839700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206875648).

139839700 is an abundant number, since it is smaller than the sum of its proper divisors (273911596).

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

139839700 is a wasteful number, since it uses less digits than its factorization.

139839700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 139839700 is about 11825.3837147046. The cubic root of 139839700 is about 519.0511543066.

It can be divided in two parts, 13 and 9839700, that multiplied together give a square (127916100 = 11310²).

The spelling of 139839700 in words is "one hundred thirty-nine million, eight hundred thirty-nine thousand, seven hundred".