811167361 has 9 divisors (see below), whose sum is σ = 856678881. Its totient is φ = 767961684.

The previous prime is 811167349. The next prime is 811167389. The reversal of 811167361 is 163761118.

The square root of 811167361 is 28481.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 811167361 - 2¹³ = 811159169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (811167061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 540390 + ... + 541888.

Almost surely, 2^811167361 is an apocalyptic number.

811167361 is the 28481-st square number.

811167361 is the 14241-st centered octagonal number.

It is an amenable number.

811167361 is a deficient number, since it is larger than the sum of its proper divisors (45511520).

811167361 is an frugal number, since it uses more digits than its factorization.

811167361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3036 (or 1518 counting only the distinct ones).

The product of its digits is 6048, while the sum is 34.

The cubic root of 811167361 is about 932.6173469613.

The spelling of 811167361 in words is "eight hundred eleven million, one hundred sixty-seven thousand, three hundred sixty-one".