163404132 has 12 divisors (see below), whose sum is σ = 381276336. Its totient is φ = 54468040.

The previous prime is 163404107. The next prime is 163404139. The reversal of 163404132 is 231404361.

163404132 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (163404139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6808494 + ... + 6808517.

It is an arithmetic number, because the mean of its divisors is an integer number (31773028).

Almost surely, 2^163404132 is an apocalyptic number.

163404132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

163404132 is an abundant number, since it is smaller than the sum of its proper divisors (217872204).

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

163404132 is a wasteful number, since it uses less digits than its factorization.

163404132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13617018 (or 13617016 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 163404132 is about 12782.9625674176. The cubic root of 163404132 is about 546.7066351569.

Adding to 163404132 its reverse (231404361), we get a palindrome (394808493).

The spelling of 163404132 in words is "one hundred sixty-three million, four hundred four thousand, one hundred thirty-two".