163243604 has 24 divisors (see below), whose sum is σ = 303730560. Its totient is φ = 76597664.

The previous prime is 163243601. The next prime is 163243607. The reversal of 163243604 is 406342361.

It is an interprime number because it is at equal distance from previous prime (163243601) and next prime (163243607).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163243601) 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, 11864 + ... + 21615.

It is an arithmetic number, because the mean of its divisors is an integer number (12655440).

Almost surely, 2^163243604 is an apocalyptic number.

It is an amenable number.

163243604 is a deficient number, since it is larger than the sum of its proper divisors (140486956).

163243604 is a wasteful number, since it uses less digits than its factorization.

163243604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33559 (or 33557 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 163243604 is about 12776.6820419074. The cubic root of 163243604 is about 546.5275485444.

Adding to 163243604 its reverse (406342361), we get a palindrome (569585965).

The spelling of 163243604 in words is "one hundred sixty-three million, two hundred forty-three thousand, six hundred four".