8155161 has 40 divisors (see below), whose sum is σ = 14674880. Its totient is φ = 4408992.

The previous prime is 8155141. The next prime is 8155171. The reversal of 8155161 is 1615518.

It is not a de Polignac number, because 8155161 - 2⁷ = 8155033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

8155161 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8155141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10395 + ... + 11151.

It is an arithmetic number, because the mean of its divisors is an integer number (366872).

Almost surely, 2^8155161 is an apocalyptic number.

8155161 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

8155161 is a deficient number, since it is larger than the sum of its proper divisors (6519719).

8155161 is a wasteful number, since it uses less digits than its factorization.

8155161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795 (or 786 counting only the distinct ones).

The product of its digits is 1200, while the sum is 27.

The square root of 8155161 is about 2855.7242513940. The cubic root of 8155161 is about 201.2847379049.

The spelling of 8155161 in words is "eight million, one hundred fifty-five thousand, one hundred sixty-one".