8161067 has 4 divisors (see below), whose sum is σ = 8515920. Its totient is φ = 7806216.

The previous prime is 8161063. The next prime is 8161073. The reversal of 8161067 is 7601618.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8161067 - 2² = 8161063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8161063) 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 3 ways as a sum of consecutive naturals, for example, 177392 + ... + 177437.

It is an arithmetic number, because the mean of its divisors is an integer number (2128980).

Almost surely, 2^8161067 is an apocalyptic number.

8161067 is a deficient number, since it is larger than the sum of its proper divisors (354853).

8161067 is a wasteful number, since it uses less digits than its factorization.

8161067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354852.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 8161067 is about 2856.7581276685. The cubic root of 8161067 is about 201.3333165821. Note that the first 4 decimals are identical.

The spelling of 8161067 in words is "eight million, one hundred sixty-one thousand, sixty-seven".