135647514225 has 36 divisors (see below), whose sum is σ = 242979714796. Its totient is φ = 72339402240.

The previous prime is 135647514209. The next prime is 135647514241. The reversal of 135647514225 is 522415746531.

135647514225 is a `hidden beast` number, since 1 + 3 + 564 + 75 + 14 + 2 + 2 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (135647514209) and next prime (135647514241).

It can be written as a sum of positive squares in 6 ways, for example, as 6903615744 + 128743898481 = 83088^2 + 358809^2 .

It is not a de Polignac number, because 135647514225 - 2⁴ = 135647514209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4862517 + ... + 4890333.

Almost surely, 2^135647514225 is an apocalyptic number.

135647514225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135647514225 is a deficient number, since it is larger than the sum of its proper divisors (107332200571).

135647514225 is a wasteful number, since it uses less digits than its factorization.

135647514225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49506 (or 49498 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 45.

The spelling of 135647514225 in words is "one hundred thirty-five billion, six hundred forty-seven million, five hundred fourteen thousand, two hundred twenty-five".