163140500 has 72 divisors (see below), whose sum is σ = 378825720. Its totient is φ = 61363200.

The previous prime is 163140499. The next prime is 163140521. The reversal of 163140500 is 5041361.

163140500 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 12 ways, for example, as 107578384 + 55562116 = 10372^2 + 7454^2 .

It is a super-2 number, since 2×163140500² = 53229645480500000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143936 + ... + 145064.

Almost surely, 2^163140500 is an apocalyptic number.

163140500 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 163140500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189412860).

163140500 is an abundant number, since it is smaller than the sum of its proper divisors (215685220).

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

163140500 is a wasteful number, since it uses less digits than its factorization.

163140500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182 (or 1153 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 163140500 is about 12772.6465542580. The cubic root of 163140500 is about 546.4124627820.

Adding to 163140500 its reverse (5041361), we get a palindrome (168181861).

The spelling of 163140500 in words is "one hundred sixty-three million, one hundred forty thousand, five hundred".