135523531200 has 168 divisors, whose sum is σ = 444857063040. Its totient is φ = 36121164800.

The previous prime is 135523531183. The next prime is 135523531211. The reversal of 135523531200 is 2135325531.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11221165 + ... + 11233235.

Almost surely, 2^135523531200 is an apocalyptic number.

135523531200 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 135523531200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222428531520).

135523531200 is an abundant number, since it is smaller than the sum of its proper divisors (309333531840).

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

135523531200 is a wasteful number, since it uses less digits than its factorization.

135523531200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14435 (or 14420 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 30.

Adding to 135523531200 its reverse (2135325531), we get a palindrome (137658856731).

The spelling of 135523531200 in words is "one hundred thirty-five billion, five hundred twenty-three million, five hundred thirty-one thousand, two hundred".