163453812 has 12 divisors (see below), whose sum is σ = 381392256. Its totient is φ = 54484600.

The previous prime is 163453783. The next prime is 163453813. The reversal of 163453812 is 218354361.

163453812 is digitally balanced in base 3 and base 9, because in such bases 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).

163453812 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163453813) 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, 6810564 + ... + 6810587.

It is an arithmetic number, because the mean of its divisors is an integer number (31782688).

Almost surely, 2^163453812 is an apocalyptic number.

163453812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

163453812 is an abundant number, since it is smaller than the sum of its proper divisors (217938444).

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

163453812 is a wasteful number, since it uses less digits than its factorization.

163453812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13621158 (or 13621156 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 163453812 is about 12784.9056312513. The cubic root of 163453812 is about 546.7620348852.

The spelling of 163453812 in words is "one hundred sixty-three million, four hundred fifty-three thousand, eight hundred twelve".