135273600 has 576 divisors, whose sum is σ = 611657280. Its totient is φ = 27648000.

The previous prime is 135273587. The next prime is 135273601. The reversal of 135273600 is 6372531.

It is a happy number.

135273600 is a `hidden beast` number, since 1 + 3 + 52 + 7 + 3 + 600 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is not an unprimeable number, because it can be changed into a prime (135273601) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2217570 + ... + 2217630.

It is an arithmetic number, because the mean of its divisors is an integer number (1061905).

Almost surely, 2^135273600 is an apocalyptic number.

135273600 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 135273600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305828640).

135273600 is an abundant number, since it is smaller than the sum of its proper divisors (476383680).

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

135273600 is a wasteful number, since it uses less digits than its factorization.

135273600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 135273600 is about 11630.7179486049. The cubic root of 135273600 is about 513.3391052742.

The spelling of 135273600 in words is "one hundred thirty-five million, two hundred seventy-three thousand, six hundred".