163090872 has 96 divisors (see below), whose sum is σ = 508385280. Its totient is φ = 46267200.

The previous prime is 163090859. The next prime is 163090883. The reversal of 163090872 is 278090361.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 23 ways as a sum of consecutive naturals, for example, 75033 + ... + 77175.

It is an arithmetic number, because the mean of its divisors is an integer number (5295680).

Almost surely, 2^163090872 is an apocalyptic number.

163090872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163090872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254192640).

163090872 is an abundant number, since it is smaller than the sum of its proper divisors (345294408).

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

163090872 is a wasteful number, since it uses less digits than its factorization.

163090872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2313 (or 2306 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 163090872 is about 12770.7036611144. The cubic root of 163090872 is about 546.3570502023.

The spelling of 163090872 in words is "one hundred sixty-three million, ninety thousand, eight hundred seventy-two".