8191134 has 72 divisors (see below), whose sum is σ = 21287448. Its totient is φ = 2268000.

The previous prime is 8191133. The next prime is 8191181. The reversal of 8191134 is 4311918.

It is a junction number, because it is equal to n+sod(n) for n = 8191098 and 8191107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8191133) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 32509 + ... + 32759.

It is an arithmetic number, because the mean of its divisors is an integer number (295659).

Almost surely, 2^8191134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8191134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10643724).

8191134 is an abundant number, since it is smaller than the sum of its proper divisors (13096314).

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

8191134 is a wasteful number, since it uses less digits than its factorization.

8191134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310 (or 300 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 8191134 is about 2862.0157232273. The cubic root of 8191134 is about 201.5802642717.

It can be divided in two parts, 819 and 1134, that added together give a triangular number (1953 = T₆₂).

The spelling of 8191134 in words is "eight million, one hundred ninety-one thousand, one hundred thirty-four".