163871232 has 80 divisors (see below), whose sum is σ = 498962112. Its totient is φ = 46817280.

The previous prime is 163871231. The next prime is 163871263. The reversal of 163871232 is 232178361.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 163871193 and 163871202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163871231) 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, 3132 + ... + 18372.

Almost surely, 2^163871232 is an apocalyptic number.

163871232 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 163871232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249481056).

163871232 is an abundant number, since it is smaller than the sum of its proper divisors (335090880).

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

163871232 is an equidigital number, since it uses as much as digits as its factorization.

163871232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15269 (or 15253 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The square root of 163871232 is about 12801.2199418649. The cubic root of 163871232 is about 547.2270702384.

The spelling of 163871232 in words is "one hundred sixty-three million, eight hundred seventy-one thousand, two hundred thirty-two".