138130135 has 16 divisors (see below), whose sum is σ = 194735520. Its totient is φ = 92730240.

The previous prime is 138130129. The next prime is 138130159. The reversal of 138130135 is 531031831.

It is not a de Polignac number, because 138130135 - 2⁷ = 138130007 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95880 + ... + 97309.

It is an arithmetic number, because the mean of its divisors is an integer number (12170970).

Almost surely, 2^138130135 is an apocalyptic number.

138130135 is a deficient number, since it is larger than the sum of its proper divisors (56605385).

138130135 is a wasteful number, since it uses less digits than its factorization.

138130135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193218.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 138130135 is about 11752.8777327087. The cubic root of 138130135 is about 516.9273118928.

Adding to 138130135 its reverse (531031831), we get a palindrome (669161966).

The spelling of 138130135 in words is "one hundred thirty-eight million, one hundred thirty thousand, one hundred thirty-five".