139996140 has 48 divisors (see below), whose sum is σ = 401556960. Its totient is φ = 36421120.

The previous prime is 139996133. The next prime is 139996141. The reversal of 139996140 is 41699931.

139996140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 139996092 and 139996101.

It is not an unprimeable number, because it can be changed into a prime (139996141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25995 + ... + 30914.

It is an arithmetic number, because the mean of its divisors is an integer number (8365770).

Almost surely, 2^139996140 is an apocalyptic number.

139996140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139996140 is an abundant number, since it is smaller than the sum of its proper divisors (261560820).

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

139996140 is a wasteful number, since it uses less digits than its factorization.

139996140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56962 (or 56960 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 139996140 is about 11831.9964503037. The cubic root of 139996140 is about 519.2446379919.

The spelling of 139996140 in words is "one hundred thirty-nine million, nine hundred ninety-six thousand, one hundred forty".