203161600 has 114 divisors (see below), whose sum is σ = 520092704. Its totient is φ = 78643200.

The previous prime is 203161597. The next prime is 203161619. The reversal of 203161600 is 6161302.

203161600 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6553585 + ... + 6553615.

Almost surely, 2^203161600 is an apocalyptic number.

203161600 is a gapful number since it is divisible by the number (20) 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 203161600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260046352).

203161600 is an abundant number, since it is smaller than the sum of its proper divisors (316931104).

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

203161600 is an frugal number, since it uses more digits than its factorization.

203161600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77 (or 38 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 203161600 is about 14253.4767688449. The cubic root of 203161600 is about 587.8689760046.

The spelling of 203161600 in words is "two hundred three million, one hundred sixty-one thousand, six hundred".