135225438 has 8 divisors (see below), whose sum is σ = 270450888. Its totient is φ = 45075144.

The previous prime is 135225437. The next prime is 135225449. The reversal of 135225438 is 834522531.

It is a sphenic number, since it is the product of 3 distinct primes.

135225438 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 135225399 and 135225408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135225437) 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, 11268781 + ... + 11268792.

It is an arithmetic number, because the mean of its divisors is an integer number (33806361).

Almost surely, 2^135225438 is an apocalyptic number.

135225438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135225438 is a wasteful number, since it uses less digits than its factorization.

135225438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22537578.

The product of its digits is 28800, while the sum is 33.

The square root of 135225438 is about 11628.6472988048. The cubic root of 135225438 is about 513.2781759855.

Adding to 135225438 its reverse (834522531), we get a palindrome (969747969).

The spelling of 135225438 in words is "one hundred thirty-five million, two hundred twenty-five thousand, four hundred thirty-eight".