139941984 has 192 divisors, whose sum is σ = 459938304. Its totient is φ = 36274176.

The previous prime is 139941953. The next prime is 139942001. The reversal of 139941984 is 489149931.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 724992 + ... + 725184.

It is an arithmetic number, because the mean of its divisors is an integer number (2395512).

Almost surely, 2^139941984 is an apocalyptic number.

139941984 is a gapful number since it is divisible by the number (14) 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 139941984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229969152).

139941984 is an abundant number, since it is smaller than the sum of its proper divisors (319996320).

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

139941984 is a wasteful number, since it uses less digits than its factorization.

139941984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309 (or 301 counting only the distinct ones).

The product of its digits is 279936, while the sum is 48.

The square root of 139941984 is about 11829.7076886963. The cubic root of 139941984 is about 519.1776746233.

The spelling of 139941984 in words is "one hundred thirty-nine million, nine hundred forty-one thousand, nine hundred eighty-four".