139216384 has 40 divisors (see below), whose sum is σ = 280482048. Its totient is φ = 69027840.

The previous prime is 139216379. The next prime is 139216391. The reversal of 139216384 is 483612931.

It is a super-3 number, since 3×139216384³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 63954 + ... + 66094.

Almost surely, 2^139216384 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 139216384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140241024).

139216384 is an abundant number, since it is smaller than the sum of its proper divisors (141265664).

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

139216384 is an equidigital number, since it uses as much as digits as its factorization.

139216384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2286 (or 2270 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 139216384 is about 11798.9992795999. Note that the first 3 decimals coincide. The cubic root of 139216384 is about 518.2788061963.

The spelling of 139216384 in words is "one hundred thirty-nine million, two hundred sixteen thousand, three hundred eighty-four".