163540000 has 240 divisors, whose sum is σ = 471167928. Its totient is φ = 55296000.

The previous prime is 163539989. The next prime is 163540031. The reversal of 163540000 is 45361.

163540000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 20 ways, for example, as 37112464 + 126427536 = 6092^2 + 11244^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 163540000.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4419982 + ... + 4420018.

Almost surely, 2^163540000 is an apocalyptic number.

163540000 is a gapful number since it is divisible by the number (10) 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 163540000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235583964).

163540000 is an abundant number, since it is smaller than the sum of its proper divisors (307627928).

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

163540000 is a wasteful number, since it uses less digits than its factorization.

163540000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 74 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 163540000 is about 12788.2758806651. The cubic root of 163540000 is about 546.8581192068.

Adding to 163540000 its reverse (45361), we get a palindrome (163585361).

The spelling of 163540000 in words is "one hundred sixty-three million, five hundred forty thousand".