163522543 has 4 divisors (see below), whose sum is σ = 166607928. Its totient is φ = 160437160.

The previous prime is 163522537. The next prime is 163522553. The reversal of 163522543 is 345225361.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 163522543 - 2²¹ = 161425391 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163522523) 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, 1542613 + ... + 1542718.

It is an arithmetic number, because the mean of its divisors is an integer number (41651982).

Almost surely, 2^163522543 is an apocalyptic number.

163522543 is a deficient number, since it is larger than the sum of its proper divisors (3085385).

163522543 is an equidigital number, since it uses as much as digits as its factorization.

163522543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3085384.

The product of its digits is 21600, while the sum is 31.

The square root of 163522543 is about 12787.5933232176. The cubic root of 163522543 is about 546.8386604773.

The spelling of 163522543 in words is "one hundred sixty-three million, five hundred twenty-two thousand, five hundred forty-three".