163534427 has 8 divisors (see below), whose sum is σ = 187058400. Its totient is φ = 140050944.

The previous prime is 163534421. The next prime is 163534447. The reversal of 163534427 is 724435361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 163534427 - 2⁴ = 163534411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163534421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 902 + ... + 18107.

It is an arithmetic number, because the mean of its divisors is an integer number (23382300).

Almost surely, 2^163534427 is an apocalyptic number.

163534427 is a deficient number, since it is larger than the sum of its proper divisors (23523973).

163534427 is a wasteful number, since it uses less digits than its factorization.

163534427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20245.

The product of its digits is 60480, while the sum is 35.

The square root of 163534427 is about 12788.0579839161. The cubic root of 163534427 is about 546.8519073220.

Adding to 163534427 its reverse (724435361), we get a palindrome (887969788).

The spelling of 163534427 in words is "one hundred sixty-three million, five hundred thirty-four thousand, four hundred twenty-seven".