163081072 has 40 divisors (see below), whose sum is σ = 393939072. Its totient is φ = 63537600.

The previous prime is 163081027. The next prime is 163081073. The reversal of 163081072 is 270180361.

163081072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 163081072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163081073) 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, 64954 + ... + 67417.

Almost surely, 2^163081072 is an apocalyptic number.

It is an amenable number.

163081072 is an abundant number, since it is smaller than the sum of its proper divisors (230858000).

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

163081072 is a wasteful number, since it uses less digits than its factorization.

163081072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132397 (or 132391 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 163081072 is about 12770.3199646681. The cubic root of 163081072 is about 546.3461065971.

The spelling of 163081072 in words is "one hundred sixty-three million, eighty-one thousand, seventy-two".