163013505 has 16 divisors (see below), whose sum is σ = 261152640. Its totient is φ = 86830208.

The previous prime is 163013471. The next prime is 163013507. The reversal of 163013505 is 505310361.

163013505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 163013505 - 2⁶ = 163013441 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (163013507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6109 + ... + 19061.

It is an arithmetic number, because the mean of its divisors is an integer number (16322040).

Almost surely, 2^163013505 is an apocalyptic number.

163013505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

163013505 is a deficient number, since it is larger than the sum of its proper divisors (98139135).

163013505 is a wasteful number, since it uses less digits than its factorization.

163013505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13800.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 163013505 is about 12767.6742204679. The cubic root of 163013505 is about 546.2706429718.

Adding to 163013505 its reverse (505310361), we get a palindrome (668323866).

The spelling of 163013505 in words is "one hundred sixty-three million, thirteen thousand, five hundred five".