139853940 has 24 divisors (see below), whose sum is σ = 391591200. Its totient is φ = 37294368.

The previous prime is 139853929. The next prime is 139854023. The reversal of 139853940 is 49358931.

139853940 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 = 139853892 and 139853901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1165390 + ... + 1165509.

It is an arithmetic number, because the mean of its divisors is an integer number (16316300).

Almost surely, 2^139853940 is an apocalyptic number.

139853940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139853940 is an abundant number, since it is smaller than the sum of its proper divisors (251737260).

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

139853940 is a wasteful number, since it uses less digits than its factorization.

139853940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2330911 (or 2330909 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 139853940 is about 11825.9857940047. The cubic root of 139853940 is about 519.0687721876.

The spelling of 139853940 in words is "one hundred thirty-nine million, eight hundred fifty-three thousand, nine hundred forty".