63135645 has 16 divisors (see below), whose sum is σ = 101399040. Its totient is φ = 33545024.

The previous prime is 63135629. The next prime is 63135647. The reversal of 63135645 is 54653136.

It is a cyclic number.

It is not a de Polignac number, because 63135645 - 2⁴ = 63135629 is a prime.

It is a super-2 number, since 2×63135645² = 7972219339132050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63135647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3789 + ... + 11858.

It is an arithmetic number, because the mean of its divisors is an integer number (6337440).

Almost surely, 2^63135645 is an apocalyptic number.

It is an amenable number.

63135645 is a deficient number, since it is larger than the sum of its proper divisors (38263395).

63135645 is a wasteful number, since it uses less digits than its factorization.

63135645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15924.

The product of its digits is 32400, while the sum is 33.

The square root of 63135645 is about 7945.7941705030. The cubic root of 63135645 is about 398.1910923810.

The spelling of 63135645 in words is "sixty-three million, one hundred thirty-five thousand, six hundred forty-five".