138300065 has 8 divisors (see below), whose sum is σ = 166157568. Its totient is φ = 110508400.

The previous prime is 138300061. The next prime is 138300067. The reversal of 138300065 is 560003831.

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

It is not a de Polignac number, because 138300065 - 2² = 138300061 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138300061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11711 + ... + 20340.

It is an arithmetic number, because the mean of its divisors is an integer number (20769696).

Almost surely, 2^138300065 is an apocalyptic number.

It is an amenable number.

138300065 is a deficient number, since it is larger than the sum of its proper divisors (27857503).

138300065 is an equidigital number, since it uses as much as digits as its factorization.

138300065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32919.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 138300065 is about 11760.1048039548. The cubic root of 138300065 is about 517.1392025648.

Adding to 138300065 its reverse (560003831), we get a palindrome (698303896).

The spelling of 138300065 in words is "one hundred thirty-eight million, three hundred thousand, sixty-five".