163502013 has 4 divisors (see below), whose sum is σ = 218002688. Its totient is φ = 109001340.

The previous prime is 163501993. The next prime is 163502023. The reversal of 163502013 is 310205361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 163502013 - 2⁹ = 163501501 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 (163502023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27250333 + ... + 27250338.

It is an arithmetic number, because the mean of its divisors is an integer number (54500672).

Almost surely, 2^163502013 is an apocalyptic number.

It is an amenable number.

163502013 is a deficient number, since it is larger than the sum of its proper divisors (54500675).

163502013 is an equidigital number, since it uses as much as digits as its factorization.

163502013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54500674.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 163502013 is about 12786.7905668311. The cubic root of 163502013 is about 546.8157746061.

Adding to 163502013 its reverse (310205361), we get a palindrome (473707374).

The spelling of 163502013 in words is "one hundred sixty-three million, five hundred two thousand, thirteen".