163779144 has 32 divisors (see below), whose sum is σ = 416163840. Its totient is φ = 53697600.

The previous prime is 163779101. The next prime is 163779151. The reversal of 163779144 is 441977361.

163779144 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 163779096 and 163779105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54472 + ... + 57399.

It is an arithmetic number, because the mean of its divisors is an integer number (13005120).

Almost surely, 2^163779144 is an apocalyptic number.

It is an amenable number.

163779144 is an abundant number, since it is smaller than the sum of its proper divisors (252384696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163779144 is a wasteful number, since it uses less digits than its factorization.

163779144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111941 (or 111937 counting only the distinct ones).

The product of its digits is 127008, while the sum is 42.

The square root of 163779144 is about 12797.6225917160. The cubic root of 163779144 is about 547.1245456559.

The spelling of 163779144 in words is "one hundred sixty-three million, seven hundred seventy-nine thousand, one hundred forty-four".