163561027 has 8 divisors (see below), whose sum is σ = 195054336. Its totient is φ = 134099592.

The previous prime is 163561019. The next prime is 163561033. The reversal of 163561027 is 720165361.

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 163561027 - 2³ = 163561019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163561027.

It is not an unprimeable number, because it can be changed into a prime (163561007) 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, 507793 + ... + 508114.

It is an arithmetic number, because the mean of its divisors is an integer number (24381792).

Almost surely, 2^163561027 is an apocalyptic number.

163561027 is a deficient number, since it is larger than the sum of its proper divisors (31493309).

163561027 is a wasteful number, since it uses less digits than its factorization.

163561027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015937.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 163561027 is about 12789.0979744468. The cubic root of 163561027 is about 546.8815554567.

The spelling of 163561027 in words is "one hundred sixty-three million, five hundred sixty-one thousand, twenty-seven".