138301111 has 8 divisors (see below), whose sum is σ = 149582160. Its totient is φ = 127111872.

The previous prime is 138301109. The next prime is 138301117. The reversal of 138301111 is 111103831.

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 138301111 - 2¹ = 138301109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138301117) 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, 19801 + ... + 25858.

It is an arithmetic number, because the mean of its divisors is an integer number (18697770).

Almost surely, 2^138301111 is an apocalyptic number.

138301111 is a deficient number, since it is larger than the sum of its proper divisors (11281049).

138301111 is a wasteful number, since it uses less digits than its factorization.

138301111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45905.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 138301111 is about 11760.1492762635. The cubic root of 138301111 is about 517.1405063151.

Adding to 138301111 its reverse (111103831), we get a palindrome (249404942).

It can be divided in two parts, 13830 and 1111, that added together give a palindrome (14941).

The spelling of 138301111 in words is "one hundred thirty-eight million, three hundred one thousand, one hundred eleven".