163900112 has 40 divisors (see below), whose sum is σ = 334130400. Its totient is φ = 77770112.

The previous prime is 163900091. The next prime is 163900127. The reversal of 163900112 is 211009361.

It is a happy number.

It is a super-2 number, since 2×163900112² = 53726493427225088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24383 + ... + 30369.

It is an arithmetic number, because the mean of its divisors is an integer number (8353260).

Almost surely, 2^163900112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163900112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167065200).

163900112 is an abundant number, since it is smaller than the sum of its proper divisors (170230288).

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

163900112 is a wasteful number, since it uses less digits than its factorization.

163900112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6083 (or 6077 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 163900112 is about 12802.3479096609. The cubic root of 163900112 is about 547.2592153751.

Adding to 163900112 its reverse (211009361), we get a palindrome (374909473).

The spelling of 163900112 in words is "one hundred sixty-three million, nine hundred thousand, one hundred twelve".