163565130 has 16 divisors (see below), whose sum is σ = 392556384. Its totient is φ = 43617360.

The previous prime is 163565081. The next prime is 163565131. The reversal of 163565130 is 31565361.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 5452171 = 163565130 / (1 + 6 + 3 + 5 + 6 + 5 + 1 + 3 + 0).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (163565131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2726056 + ... + 2726115.

It is an arithmetic number, because the mean of its divisors is an integer number (24534774).

Almost surely, 2^163565130 is an apocalyptic number.

163565130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163565130 is an abundant number, since it is smaller than the sum of its proper divisors (228991254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163565130 is a wasteful number, since it uses less digits than its factorization.

163565130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5452181.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 163565130 is about 12789.2583835029. The cubic root of 163565130 is about 546.8861283395.

The spelling of 163565130 in words is "one hundred sixty-three million, five hundred sixty-five thousand, one hundred thirty".