163225000 has 48 divisors (see below), whose sum is σ = 382592700. Its totient is φ = 65280000.

The previous prime is 163224967. The next prime is 163225039. The reversal of 163225000 is 522361.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 51753636 + 111471364 = 7194^2 + 10558^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21736 + ... + 28264.

Almost surely, 2^163225000 is an apocalyptic number.

163225000 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 163225000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191296350).

163225000 is an abundant number, since it is smaller than the sum of its proper divisors (219367700).

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

163225000 is an frugal number, since it uses more digits than its factorization.

163225000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6560 (or 6536 counting only the distinct ones).

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

The square root of 163225000 is about 12775.9539761225. The cubic root of 163225000 is about 546.5067861489.

Adding to 163225000 its reverse (522361), we get a palindrome (163747361).

The spelling of 163225000 in words is "one hundred sixty-three million, two hundred twenty-five thousand".