135186545 has 24 divisors (see below), whose sum is σ = 181007736. Its totient is φ = 96348672.

The previous prime is 135186521. The next prime is 135186559. The reversal of 135186545 is 545681531.

It can be written as a sum of positive squares in 12 ways, for example, as 31798321 + 103388224 = 5639^2 + 10168^2 .

It is not a de Polignac number, because 135186545 - 2⁶ = 135186481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135186499 and 135186508.

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 23 ways as a sum of consecutive naturals, for example, 53429 + ... + 55901.

It is an arithmetic number, because the mean of its divisors is an integer number (7541989).

Almost surely, 2^135186545 is an apocalyptic number.

It is an amenable number.

135186545 is a deficient number, since it is larger than the sum of its proper divisors (45821191).

135186545 is a wasteful number, since it uses less digits than its factorization.

135186545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2549 (or 2520 counting only the distinct ones).

The product of its digits is 72000, while the sum is 38.

The square root of 135186545 is about 11626.9748860140. The cubic root of 135186545 is about 513.2289622611.

The spelling of 135186545 in words is "one hundred thirty-five million, one hundred eighty-six thousand, five hundred forty-five".