63135656 has 16 divisors (see below), whose sum is σ = 120002100. Its totient is φ = 31135104.

The previous prime is 63135647. The next prime is 63135659. The reversal of 63135656 is 65653136.

It can be written as a sum of positive squares in 2 ways, for example, as 58767556 + 4368100 = 7666^2 + 2090^2 .

It is a super-2 number, since 2×63135656² = 7972222117100672, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (63135659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53471 + ... + 54638.

Almost surely, 2^63135656 is an apocalyptic number.

It is an amenable number.

63135656 is a deficient number, since it is larger than the sum of its proper divisors (56866444).

63135656 is a wasteful number, since it uses less digits than its factorization.

63135656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108188 (or 108184 counting only the distinct ones).

The product of its digits is 48600, while the sum is 35.

The square root of 63135656 is about 7945.7948626931. The cubic root of 63135656 is about 398.1911155064.

The spelling of 63135656 in words is "sixty-three million, one hundred thirty-five thousand, six hundred fifty-six".