163136543 has 4 divisors (see below), whose sum is σ = 163164768. Its totient is φ = 163108320.

The previous prime is 163136503. The next prime is 163136551. The reversal of 163136543 is 345631361.

163136543 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.

It is a cyclic number.

It is not a de Polignac number, because 163136543 - 2⁸ = 163136287 is a prime.

It is a super-2 number, since 2×163136543² = 53227063323981698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163136503) 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, 1946 + ... + 18167.

It is an arithmetic number, because the mean of its divisors is an integer number (40791192).

Almost surely, 2^163136543 is an apocalyptic number.

163136543 is a deficient number, since it is larger than the sum of its proper divisors (28225).

163136543 is an equidigital number, since it uses as much as digits as its factorization.

163136543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28224.

The product of its digits is 19440, while the sum is 32.

The square root of 163136543 is about 12772.4916519840. The cubic root of 163136543 is about 546.4080449712.

The spelling of 163136543 in words is "one hundred sixty-three million, one hundred thirty-six thousand, five hundred forty-three".