813203160 has 512 divisors, whose sum is σ = 3344302080. Its totient is φ = 152985600.

The previous prime is 813203147. The next prime is 813203197. The reversal of 813203160 is 61302318.

It is a super-2 number, since 2×813203160² = 1322598758867971200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 813203160.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4869397 + ... + 4869563.

It is an arithmetic number, because the mean of its divisors is an integer number (6531840).

Almost surely, 2^813203160 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 813203160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1672151040).

813203160 is an abundant number, since it is smaller than the sum of its proper divisors (2531098920).

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

813203160 is a wasteful number, since it uses less digits than its factorization.

813203160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 813203160 is about 28516.7172023710. The cubic root of 813203160 is about 933.3968964647.

Adding to 813203160 its reverse (61302318), we get a palindrome (874505478).

The spelling of 813203160 in words is "eight hundred thirteen million, two hundred three thousand, one hundred sixty".