1135656513 has 6 divisors (see below), whose sum is σ = 1640392754. Its totient is φ = 757104336.

The previous prime is 1135656497. The next prime is 1135656527. The reversal of 1135656513 is 3156565311.

1135656513 is a `hidden beast` number, since 1 + 135 + 6 + 5 + 6 + 513 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1132793649 + 2862864 = 33657^2 + 1692^2 .

It is not a de Polignac number, because 1135656513 - 2⁴ = 1135656497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1135656413) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63092020 + ... + 63092037.

Almost surely, 2^1135656513 is an apocalyptic number.

It is an amenable number.

1135656513 is a deficient number, since it is larger than the sum of its proper divisors (504736241).

1135656513 is a wasteful number, since it uses less digits than its factorization.

1135656513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126184063 (or 126184060 counting only the distinct ones).

The product of its digits is 40500, while the sum is 36.

The square root of 1135656513 is about 33699.5031565749. The cubic root of 1135656513 is about 1043.3155139116.

The spelling of 1135656513 in words is "one billion, one hundred thirty-five million, six hundred fifty-six thousand, five hundred thirteen".