163651041 has 12 divisors (see below), whose sum is σ = 236751060. Its totient is φ = 108931680.

The previous prime is 163650989. The next prime is 163651067. The reversal of 163651041 is 140156361.

163651041 is a `hidden beast` number, since 1 + 6 + 3 + 651 + 0 + 4 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 62346816 + 101304225 = 7896^2 + 10065^2 .

It is not a de Polignac number, because 163651041 - 2¹¹ = 163648993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163650996 and 163651014.

It is not an unprimeable number, because it can be changed into a prime (163651441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7806 + ... + 19703.

It is an arithmetic number, because the mean of its divisors is an integer number (19729255).

Almost surely, 2^163651041 is an apocalyptic number.

It is an amenable number.

163651041 is a deficient number, since it is larger than the sum of its proper divisors (73100019).

163651041 is a wasteful number, since it uses less digits than its factorization.

163651041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28176 (or 28173 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 163651041 is about 12792.6166596205. The cubic root of 163651041 is about 546.9818604610.

The spelling of 163651041 in words is "one hundred sixty-three million, six hundred fifty-one thousand, forty-one".