138106065 has 8 divisors (see below), whose sum is σ = 220969728. Its totient is φ = 73656560.

The previous prime is 138106063. The next prime is 138106097. The reversal of 138106065 is 560601831.

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

It is not a de Polignac number, because 138106065 - 2¹ = 138106063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138106061) 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, 4603521 + ... + 4603550.

It is an arithmetic number, because the mean of its divisors is an integer number (27621216).

Almost surely, 2^138106065 is an apocalyptic number.

138106065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

138106065 is a deficient number, since it is larger than the sum of its proper divisors (82863663).

138106065 is an equidigital number, since it uses as much as digits as its factorization.

138106065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9207079.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 138106065 is about 11751.8536835684. The cubic root of 138106065 is about 516.8972842594.

Adding to 138106065 its reverse (560601831), we get a palindrome (698707896).

The spelling of 138106065 in words is "one hundred thirty-eight million, one hundred six thousand, sixty-five".