163113507 has 12 divisors (see below), whose sum is σ = 244335000. Its totient is φ = 108742176.

The previous prime is 163113473. The next prime is 163113527. The reversal of 163113507 is 705311361.

163113507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 163113507 - 2²² = 158919203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (163113527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 335382 + ... + 335867.

It is an arithmetic number, because the mean of its divisors is an integer number (20361250).

Almost surely, 2^163113507 is an apocalyptic number.

163113507 is a deficient number, since it is larger than the sum of its proper divisors (81221493).

163113507 is an frugal number, since it uses more digits than its factorization.

163113507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671264 (or 671252 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 163113507 is about 12771.5898383874. The cubic root of 163113507 is about 546.3823249047.

Adding to 163113507 its reverse (705311361), we get a palindrome (868424868).

The spelling of 163113507 in words is "one hundred sixty-three million, one hundred thirteen thousand, five hundred seven".