135543125 has 20 divisors (see below), whose sum is σ = 179351964. Its totient is φ = 102048000.

The previous prime is 135543113. The next prime is 135543151. The reversal of 135543125 is 521345531.

It can be written as a sum of positive squares in 10 ways, for example, as 80694289 + 54848836 = 8983^2 + 7406^2 .

It is not a de Polignac number, because 135543125 - 2²² = 131348821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4247 + ... + 17003.

Almost surely, 2^135543125 is an apocalyptic number.

It is an amenable number.

135543125 is a deficient number, since it is larger than the sum of its proper divisors (43808839).

135543125 is an equidigital number, since it uses as much as digits as its factorization.

135543125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12794 (or 12779 counting only the distinct ones).

The product of its digits is 9000, while the sum is 29.

The square root of 135543125 is about 11642.2989568212. The cubic root of 135543125 is about 513.6798121427.

Adding to 135543125 its reverse (521345531), we get a palindrome (656888656).

The spelling of 135543125 in words is "one hundred thirty-five million, five hundred forty-three thousand, one hundred twenty-five".