163345541 has 4 divisors (see below), whose sum is σ = 168614784. Its totient is φ = 158076300.

The previous prime is 163345513. The next prime is 163345543. The reversal of 163345541 is 145543361.

163345541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 163345541 - 2¹⁴ = 163329157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163345498 and 163345507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163345543) 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, 2634575 + ... + 2634636.

It is an arithmetic number, because the mean of its divisors is an integer number (42153696).

Almost surely, 2^163345541 is an apocalyptic number.

It is an amenable number.

163345541 is a deficient number, since it is larger than the sum of its proper divisors (5269243).

163345541 is an equidigital number, since it uses as much as digits as its factorization.

163345541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5269242.

The product of its digits is 21600, while the sum is 32.

The square root of 163345541 is about 12780.6706005593. The cubic root of 163345541 is about 546.6412840601.

It can be divided in two parts, 1633 and 45541, that added together give a palindrome (47174).

The spelling of 163345541 in words is "one hundred sixty-three million, three hundred forty-five thousand, five hundred forty-one".