138030113 has 4 divisors (see below), whose sum is σ = 148647828. Its totient is φ = 127412400.

The previous prime is 138030097. The next prime is 138030119. The reversal of 138030113 is 311030831.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 60730849 + 77299264 = 7793^2 + 8792^2 .

It is a cyclic number.

It is not a de Polignac number, because 138030113 - 2⁴ = 138030097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138030119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5308838 + ... + 5308863.

It is an arithmetic number, because the mean of its divisors is an integer number (37161957).

Almost surely, 2^138030113 is an apocalyptic number.

138030113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

138030113 is a deficient number, since it is larger than the sum of its proper divisors (10617715).

138030113 is a wasteful number, since it uses less digits than its factorization.

138030113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10617714.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 138030113 is about 11748.6217489542. The cubic root of 138030113 is about 516.8025102858.

Adding to 138030113 its reverse (311030831), we get a palindrome (449060944).

The spelling of 138030113 in words is "one hundred thirty-eight million, thirty thousand, one hundred thirteen".