135543725 has 6 divisors (see below), whose sum is σ = 168074250. Its totient is φ = 108434960.

The previous prime is 135543721. The next prime is 135543787. The reversal of 135543725 is 527345531.

It can be written as a sum of positive squares in 3 ways, for example, as 14235529 + 121308196 = 3773^2 + 11014^2 .

It is not a de Polignac number, because 135543725 - 2² = 135543721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135543721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2710850 + ... + 2710899.

It is an arithmetic number, because the mean of its divisors is an integer number (28012375).

Almost surely, 2^135543725 is an apocalyptic number.

It is an amenable number.

135543725 is a deficient number, since it is larger than the sum of its proper divisors (32530525).

135543725 is an equidigital number, since it uses as much as digits as its factorization.

135543725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5421759 (or 5421754 counting only the distinct ones).

The product of its digits is 63000, while the sum is 35.

The square root of 135543725 is about 11642.3247248992. The cubic root of 135543725 is about 513.6805700994.

The spelling of 135543725 in words is "one hundred thirty-five million, five hundred forty-three thousand, seven hundred twenty-five".