163045573 has 4 divisors (see below), whose sum is σ = 165279148. Its totient is φ = 160812000.

The previous prime is 163045567. The next prime is 163045577. The reversal of 163045573 is 375540361.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 89737729 + 73307844 = 9473^2 + 8562^2 .

It is a cyclic number.

It is not a de Polignac number, because 163045573 - 2¹⁷ = 162914501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163045577) 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, 1116678 + ... + 1116823.

It is an arithmetic number, because the mean of its divisors is an integer number (41319787).

Almost surely, 2^163045573 is an apocalyptic number.

It is an amenable number.

163045573 is a deficient number, since it is larger than the sum of its proper divisors (2233575).

163045573 is an equidigital number, since it uses as much as digits as its factorization.

163045573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2233574.

The product of its (nonzero) digits is 37800, while the sum is 34.

The square root of 163045573 is about 12768.9299864946. The cubic root of 163045573 is about 546.3064613915.

The spelling of 163045573 in words is "one hundred sixty-three million, forty-five thousand, five hundred seventy-three".