163204345 has 4 divisors (see below), whose sum is σ = 195845220. Its totient is φ = 130563472.

The previous prime is 163204337. The next prime is 163204361. The reversal of 163204345 is 543402361.

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 129413376 + 33790969 = 11376^2 + 5813^2 .

It is a cyclic number.

It is not a de Polignac number, because 163204345 - 2³ = 163204337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16320430 + ... + 16320439.

It is an arithmetic number, because the mean of its divisors is an integer number (48961305).

Almost surely, 2^163204345 is an apocalyptic number.

It is an amenable number.

163204345 is a deficient number, since it is larger than the sum of its proper divisors (32640875).

163204345 is an equidigital number, since it uses as much as digits as its factorization.

163204345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32640874.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 163204345 is about 12775.1455960392. The cubic root of 163204345 is about 546.4837329527.

The spelling of 163204345 in words is "one hundred sixty-three million, two hundred four thousand, three hundred forty-five".