811532116 has 6 divisors (see below), whose sum is σ = 1420181210. Its totient is φ = 405766056.

The previous prime is 811532087. The next prime is 811532119. The reversal of 811532116 is 611235118.

It can be written as a sum of positive squares in only one way, i.e., 426587716 + 384944400 = 20654^2 + 19620^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811532119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101441511 + ... + 101441518.

Almost surely, 2^811532116 is an apocalyptic number.

It is an amenable number.

811532116 is a deficient number, since it is larger than the sum of its proper divisors (608649094).

811532116 is a wasteful number, since it uses less digits than its factorization.

811532116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202883033 (or 202883031 counting only the distinct ones).

The product of its digits is 1440, while the sum is 28.

The square root of 811532116 is about 28487.4027598165. The cubic root of 811532116 is about 932.7571150210.

The spelling of 811532116 in words is "eight hundred eleven million, five hundred thirty-two thousand, one hundred sixteen".