135225400 has 48 divisors (see below), whose sum is σ = 317334600. Its totient is φ = 53585280.

The previous prime is 135225383. The next prime is 135225403. The reversal of 135225400 is 4522531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135225403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18699 + ... + 24901.

Almost surely, 2^135225400 is an apocalyptic number.

135225400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135225400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158667300).

135225400 is an abundant number, since it is smaller than the sum of its proper divisors (182109200).

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

135225400 is a wasteful number, since it uses less digits than its factorization.

135225400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6328 (or 6319 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 135225400 is about 11628.6456649087. The cubic root of 135225400 is about 513.2781279063.

Adding to 135225400 its reverse (4522531), we get a palindrome (139747931).

The spelling of 135225400 in words is "one hundred thirty-five million, two hundred twenty-five thousand, four hundred".