139163140 has 12 divisors (see below), whose sum is σ = 292242636. Its totient is φ = 55665248.

The previous prime is 139163137. The next prime is 139163149. The reversal of 139163140 is 41361931.

139163140 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 84787264 + 54375876 = 9208^2 + 7374^2 .

139163140 is strictly pandigital in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 139163099 and 139163108.

It is not an unprimeable number, because it can be changed into a prime (139163149) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3479059 + ... + 3479098.

It is an arithmetic number, because the mean of its divisors is an integer number (24353553).

Almost surely, 2^139163140 is an apocalyptic number.

139163140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139163140 is an abundant number, since it is smaller than the sum of its proper divisors (153079496).

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

139163140 is a wasteful number, since it uses less digits than its factorization.

139163140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6958166 (or 6958164 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 139163140 is about 11796.7427707821. The cubic root of 139163140 is about 518.2127250002.

The spelling of 139163140 in words is "one hundred thirty-nine million, one hundred sixty-three thousand, one hundred forty".