135732825 has 18 divisors (see below), whose sum is σ = 243112974. Its totient is φ = 72390720.

The previous prime is 135732797. The next prime is 135732833. The reversal of 135732825 is 528237531.

It is a happy number.

135732825 is a `hidden beast` number, since 1 + 3 + 573 + 2 + 82 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 8020224 + 127712601 = 2832^2 + 11301^2 .

It is not a de Polignac number, because 135732825 - 2⁷ = 135732697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135732825.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 301404 + ... + 301853.

Almost surely, 2^135732825 is an apocalyptic number.

135732825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135732825 is a deficient number, since it is larger than the sum of its proper divisors (107380149).

135732825 is a wasteful number, since it uses less digits than its factorization.

135732825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603273 (or 603265 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 135732825 is about 11650.4431246198. The cubic root of 135732825 is about 513.9193414089.

The spelling of 135732825 in words is "one hundred thirty-five million, seven hundred thirty-two thousand, eight hundred twenty-five".