138385255130 has 8 divisors (see below), whose sum is σ = 249093459252. Its totient is φ = 55354102048.

The previous prime is 138385255109. The next prime is 138385255133. The reversal of 138385255130 is 31552583831.

It is a happy number.

138385255130 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 2 ways, for example, as 138255317929 + 129937201 = 371827^2 + 11399^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (138385255133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6919262747 + ... + 6919262766.

Almost surely, 2^138385255130 is an apocalyptic number.

138385255130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138385255130 is a deficient number, since it is larger than the sum of its proper divisors (110708204122).

138385255130 is a wasteful number, since it uses less digits than its factorization.

138385255130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13838525520.

The product of its (nonzero) digits is 432000, while the sum is 44.

The spelling of 138385255130 in words is "one hundred thirty-eight billion, three hundred eighty-five million, two hundred fifty-five thousand, one hundred thirty".