139538360 has 32 divisors (see below), whose sum is σ = 338113440. Its totient is φ = 51521664.

The previous prime is 139538327. The next prime is 139538369. The reversal of 139538360 is 63835931.

139538360 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×139538360² = 38941907822979200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139538369) 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 7 ways as a sum of consecutive naturals, for example, 133652 + ... + 134691.

It is an arithmetic number, because the mean of its divisors is an integer number (10566045).

Almost surely, 2^139538360 is an apocalyptic number.

139538360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139538360 is an abundant number, since it is smaller than the sum of its proper divisors (198575080).

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

139538360 is a wasteful number, since it uses less digits than its factorization.

139538360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268367 (or 268363 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 139538360 is about 11812.6356076872. The cubic root of 139538360 is about 518.6780524401.

The spelling of 139538360 in words is "one hundred thirty-nine million, five hundred thirty-eight thousand, three hundred sixty".