135727225 has 12 divisors (see below), whose sum is σ = 170195580. Its totient is φ = 107360000.

The previous prime is 135727219. The next prime is 135727231. The reversal of 135727225 is 522727531.

It is an interprime number because it is at equal distance from previous prime (135727219) and next prime (135727231).

It can be written as a sum of positive squares in 6 ways, for example, as 6927424 + 128799801 = 2632^2 + 11349^2 .

It is not a de Polignac number, because 135727225 - 2⁹ = 135726713 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 28276 + ... + 32725.

It is an arithmetic number, because the mean of its divisors is an integer number (14182965).

Almost surely, 2^135727225 is an apocalyptic number.

It is an amenable number.

135727225 is a deficient number, since it is larger than the sum of its proper divisors (34468355).

135727225 is an equidigital number, since it uses as much as digits as its factorization.

135727225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61100 (or 61095 counting only the distinct ones).

The product of its digits is 29400, while the sum is 34.

The square root of 135727225 is about 11650.2027879346. The cubic root of 135727225 is about 513.9122736322.

It can be divided in two parts, 1357 and 27225, that added together give a palindrome (28582).

The spelling of 135727225 in words is "one hundred thirty-five million, seven hundred twenty-seven thousand, two hundred twenty-five".