It is an unprimeable number.
Almost surely, 22139147920 is an apocalyptic number.
2139147920 is a gapful number since it is divisible by the number (20) 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 2139147920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3133368090).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2139147920 is a wasteful number, since it uses less digits than its factorization.
2139147920 is an odious number, because the sum of its binary digits is odd.
The square root of 2139147920 is about 46250.9234502404. The cubic root of 2139147920 is about 1288.4876855158.
The spelling of 2139147920 in words is "two billion, one hundred thirty-nine million, one hundred forty-seven thousand, nine hundred twenty".