163040512 has 18 divisors (see below), whose sum is σ = 325444658. Its totient is φ = 81520128.

The previous prime is 163040497. The next prime is 163040513. The reversal of 163040512 is 215040361.

It can be written as a sum of positive squares in only one way, i.e., 152176896 + 10863616 = 12336^2 + 3296^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163040513) 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 as a sum of consecutive naturals, namely, 318183 + ... + 318694.

Almost surely, 2^163040512 is an apocalyptic number.

It is an amenable number.

163040512 is a deficient number, since it is larger than the sum of its proper divisors (162404146).

163040512 is an frugal number, since it uses more digits than its factorization.

163040512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636893 (or 636879 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 163040512 is about 12768.7318086018. The cubic root of 163040512 is about 546.3008088091.

Adding to 163040512 its reverse (215040361), we get a palindrome (378080873).

The spelling of 163040512 in words is "one hundred sixty-three million, forty thousand, five hundred twelve".