163123304 has 8 divisors (see below), whose sum is σ = 305856210. Its totient is φ = 81561648.

The previous prime is 163123277. The next prime is 163123321. The reversal of 163123304 is 403321361.

It can be written as a sum of positive squares in only one way, i.e., 116856100 + 46267204 = 10810^2 + 6802^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 163123304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10195199 + ... + 10195214.

Almost surely, 2^163123304 is an apocalyptic number.

It is an amenable number.

163123304 is a deficient number, since it is larger than the sum of its proper divisors (142732906).

163123304 is a wasteful number, since it uses less digits than its factorization.

163123304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20390419 (or 20390415 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 163123304 is about 12771.9733792394. The cubic root of 163123304 is about 546.3932637095.

Adding to 163123304 its reverse (403321361), we get a palindrome (566444665).

The spelling of 163123304 in words is "one hundred sixty-three million, one hundred twenty-three thousand, three hundred four".