163859144 has 16 divisors (see below), whose sum is σ = 307403520. Its totient is φ = 81884880.

The previous prime is 163859131. The next prime is 163859147. The reversal of 163859144 is 441958361.

It is not an unprimeable number, because it can be changed into a prime (163859147) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 14057 + ... + 22919.

It is an arithmetic number, because the mean of its divisors is an integer number (19212720).

Almost surely, 2^163859144 is an apocalyptic number.

It is an amenable number.

163859144 is a deficient number, since it is larger than the sum of its proper divisors (143544376).

163859144 is a wasteful number, since it uses less digits than its factorization.

163859144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11180 (or 11176 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 163859144 is about 12800.7477906566. The cubic root of 163859144 is about 547.2136144630.

The spelling of 163859144 in words is "one hundred sixty-three million, eight hundred fifty-nine thousand, one hundred forty-four".