812135350 has 48 divisors (see below), whose sum is σ = 1642113648. Its totient is φ = 297037440.

The previous prime is 812135299. The next prime is 812135353. The reversal of 812135350 is 53531218.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812135353) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63712 + ... + 75388.

It is an arithmetic number, because the mean of its divisors is an integer number (34210701).

Almost surely, 2^812135350 is an apocalyptic number.

812135350 is an abundant number, since it is smaller than the sum of its proper divisors (829978298).

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

812135350 is a wasteful number, since it uses less digits than its factorization.

812135350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11809 (or 11804 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 812135350 is about 28497.9885255083. The cubic root of 812135350 is about 932.9881723983.

Adding to 812135350 its reverse (53531218), we get a palindrome (865666568).

The spelling of 812135350 in words is "eight hundred twelve million, one hundred thirty-five thousand, three hundred fifty".