8161267 has 4 divisors (see below), whose sum is σ = 8442720. Its totient is φ = 7879816.

The previous prime is 8161261. The next prime is 8161273. The reversal of 8161267 is 7621618.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7621618 = 2 ⋅3810809.

It is an interprime number because it is at equal distance from previous prime (8161261) and next prime (8161273).

It is a cyclic number.

It is not a de Polignac number, because 8161267 - 2³ = 8161259 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8161261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140683 + ... + 140740.

It is an arithmetic number, because the mean of its divisors is an integer number (2110680).

Almost surely, 2^8161267 is an apocalyptic number.

8161267 is a deficient number, since it is larger than the sum of its proper divisors (281453).

8161267 is a wasteful number, since it uses less digits than its factorization.

8161267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281452.

The product of its digits is 4032, while the sum is 31.

The square root of 8161267 is about 2856.7931321676. The cubic root of 8161267 is about 201.3349612337.

The spelling of 8161267 in words is "eight million, one hundred sixty-one thousand, two hundred sixty-seven".