135135657 has 18 divisors (see below), whose sum is σ = 206015082. Its totient is φ = 85346784.

The previous prime is 135135653. The next prime is 135135673. The reversal of 135135657 is 756531531.

It can be written as a sum of positive squares in only one way, i.e., 97239321 + 37896336 = 9861^2 + 6156^2 .

It is not a de Polignac number, because 135135657 - 2² = 135135653 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135135653) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 17548 + ... + 24045.

Almost surely, 2^135135657 is an apocalyptic number.

It is an amenable number.

135135657 is a deficient number, since it is larger than the sum of its proper divisors (70879425).

135135657 is a wasteful number, since it uses less digits than its factorization.

135135657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41637 (or 41615 counting only the distinct ones).

The product of its digits is 47250, while the sum is 36.

The square root of 135135657 is about 11624.7863206168. The cubic root of 135135657 is about 513.1645562627.

The spelling of 135135657 in words is "one hundred thirty-five million, one hundred thirty-five thousand, six hundred fifty-seven".