163081136 has 40 divisors (see below), whose sum is σ = 337862304. Its totient is φ = 75985920.

The previous prime is 163081129. The next prime is 163081141. The reversal of 163081136 is 631180361.

163081136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 163081099 and 163081108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25106 + ... + 30926.

Almost surely, 2^163081136 is an apocalyptic number.

163081136 is a gapful number since it is divisible by the number (16) 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 163081136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168931152).

163081136 is an abundant number, since it is smaller than the sum of its proper divisors (174781168).

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

163081136 is a wasteful number, since it uses less digits than its factorization.

163081136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5949 (or 5943 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 163081136 is about 12770.3224704782. The cubic root of 163081136 is about 546.3461780669.

The spelling of 163081136 in words is "one hundred sixty-three million, eighty-one thousand, one hundred thirty-six".