135004238 has 4 divisors (see below), whose sum is σ = 202506360. Its totient is φ = 67502118.

The previous prime is 135004223. The next prime is 135004241. The reversal of 135004238 is 832400531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 832400531 = 73 ⋅11402747.

It is a super-2 number, since 2×135004238² = 36452288555921288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33751058 + ... + 33751061.

It is an arithmetic number, because the mean of its divisors is an integer number (50626590).

Almost surely, 2^135004238 is an apocalyptic number.

135004238 is a deficient number, since it is larger than the sum of its proper divisors (67502122).

135004238 is an equidigital number, since it uses as much as digits as its factorization.

135004238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67502121.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 135004238 is about 11619.1324116734. The cubic root of 135004238 is about 512.9981520047.

Adding to 135004238 its reverse (832400531), we get a palindrome (967404769).

The spelling of 135004238 in words is "one hundred thirty-five million, four thousand, two hundred thirty-eight".