138102560 has 48 divisors (see below), whose sum is σ = 345466296. Its totient is φ = 51990528.

The previous prime is 138102527. The next prime is 138102563. The reversal of 138102560 is 65201831.

138102560 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 133726096 + 4376464 = 11564^2 + 2092^2 .

It is not an unprimeable number, because it can be changed into a prime (138102563) 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 7 ways as a sum of consecutive naturals, for example, 22667 + ... + 28106.

Almost surely, 2^138102560 is an apocalyptic number.

138102560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138102560 is an abundant number, since it is smaller than the sum of its proper divisors (207363736).

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

138102560 is a wasteful number, since it uses less digits than its factorization.

138102560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50805 (or 50797 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 138102560 is about 11751.7045572121. The cubic root of 138102560 is about 516.8929114360.

The spelling of 138102560 in words is "one hundred thirty-eight million, one hundred two thousand, five hundred sixty".