163113013 has 6 divisors (see below), whose sum is σ = 189743766. Its totient is φ = 139811112.

The previous prime is 163112981. The next prime is 163113031. The reversal of 163113013 is 310311361.

163113013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 138133009 + 24980004 = 11753^2 + 4998^2 .

It is not a de Polignac number, because 163113013 - 2⁵ = 163112981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163113053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1664370 + ... + 1664467.

It is an arithmetic number, because the mean of its divisors is an integer number (31623961).

Almost surely, 2^163113013 is an apocalyptic number.

It is an amenable number.

163113013 is a deficient number, since it is larger than the sum of its proper divisors (26630753).

163113013 is an equidigital number, since it uses as much as digits as its factorization.

163113013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3328851 (or 3328844 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 163113013 is about 12771.5704985722. The cubic root of 163113013 is about 546.3817733192.

Adding to 163113013 its reverse (310311361), we get a palindrome (473424374).

The spelling of 163113013 in words is "one hundred sixty-three million, one hundred thirteen thousand, thirteen".