163542011 has 2 divisors, whose sum is σ = 163542012. Its totient is φ = 163542010.

The previous prime is 163541971. The next prime is 163542013. The reversal of 163542011 is 110245361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 163542011 - 2⁶ = 163541947 is a prime.

Together with 163542013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (163542013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81771005 + 81771006.

It is an arithmetic number, because the mean of its divisors is an integer number (81771006).

Almost surely, 2^163542011 is an apocalyptic number.

163542011 is a deficient number, since it is larger than the sum of its proper divisors (1).

163542011 is an equidigital number, since it uses as much as digits as its factorization.

163542011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 163542011 is about 12788.3545071287. The cubic root of 163542011 is about 546.8603607118.

Adding to 163542011 its reverse (110245361), we get a palindrome (273787372).

The spelling of 163542011 in words is "one hundred sixty-three million, five hundred forty-two thousand, eleven".