138030041 has 4 divisors (see below), whose sum is σ = 145294800. Its totient is φ = 130765284.

The previous prime is 138030031. The next prime is 138030049. The reversal of 138030041 is 140030831.

It is a happy number.

138030041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 138030041 - 2⁶ = 138029977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138029995 and 138030022.

It is not an unprimeable number, because it can be changed into a prime (138030049) 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, 3632351 + ... + 3632388.

It is an arithmetic number, because the mean of its divisors is an integer number (36323700).

Almost surely, 2^138030041 is an apocalyptic number.

It is an amenable number.

138030041 is a deficient number, since it is larger than the sum of its proper divisors (7264759).

138030041 is an equidigital number, since it uses as much as digits as its factorization.

138030041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7264758.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 138030041 is about 11748.6186847646. The cubic root of 138030041 is about 516.8024204267.

Adding to 138030041 its reverse (140030831), we get a palindrome (278060872).

The spelling of 138030041 in words is "one hundred thirty-eight million, thirty thousand, forty-one".