135647025 has 12 divisors (see below), whose sum is σ = 224269872. Its totient is φ = 72345040.

The previous prime is 135646999. The next prime is 135647033. The reversal of 135647025 is 520746531.

It is not a de Polignac number, because 135647025 - 2⁵ = 135646993 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 904239 + ... + 904388.

It is an arithmetic number, because the mean of its divisors is an integer number (18689156).

Almost surely, 2^135647025 is an apocalyptic number.

135647025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135647025 is a deficient number, since it is larger than the sum of its proper divisors (88622847).

135647025 is a wasteful number, since it uses less digits than its factorization.

135647025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808640 (or 1808635 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 135647025 is about 11646.7602791506. The cubic root of 135647025 is about 513.8110316374.

The spelling of 135647025 in words is "one hundred thirty-five million, six hundred forty-seven thousand, twenty-five".