138385300146 has 16 divisors (see below), whose sum is σ = 276912484608. Its totient is φ = 46104786000.

The previous prime is 138385300121. The next prime is 138385300177. The reversal of 138385300146 is 641003583831.

It is a junction number, because it is equal to n+sod(n) for n = 138385300098 and 138385300107.

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, 5899165 + ... + 5922576.

It is an arithmetic number, because the mean of its divisors is an integer number (17307030288).

Almost surely, 2^138385300146 is an apocalyptic number.

138385300146 is an abundant number, since it is smaller than the sum of its proper divisors (138527184462).

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

138385300146 is a wasteful number, since it uses less digits than its factorization.

138385300146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11823697.

The product of its (nonzero) digits is 207360, while the sum is 42.

Adding to 138385300146 its reverse (641003583831), we get a palindrome (779388883977).

The spelling of 138385300146 in words is "one hundred thirty-eight billion, three hundred eighty-five million, three hundred thousand, one hundred forty-six".