138902515005 has 8 divisors (see below), whose sum is σ = 222244024032. Its totient is φ = 74081341328.

The previous prime is 138902514997. The next prime is 138902515007. The reversal of 138902515005 is 500515209831.

138902515005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 138902515005 - 2³ = 138902514997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138902515007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4630083819 + ... + 4630083848.

It is an arithmetic number, because the mean of its divisors is an integer number (27780503004).

Almost surely, 2^138902515005 is an apocalyptic number.

138902515005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

138902515005 is a deficient number, since it is larger than the sum of its proper divisors (83341509027).

138902515005 is an equidigital number, since it uses as much as digits as its factorization.

138902515005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9260167675.

The product of its (nonzero) digits is 54000, while the sum is 39.

The spelling of 138902515005 in words is "one hundred thirty-eight billion, nine hundred two million, five hundred fifteen thousand, five".