8161137 has 6 divisors (see below), whose sum is σ = 11788322. Its totient is φ = 5440752.

The previous prime is 8161121. The next prime is 8161183. The reversal of 8161137 is 7311618.

8161137 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 5308416 + 2852721 = 2304^2 + 1689^2 .

It is not a de Polignac number, because 8161137 - 2⁴ = 8161121 is a prime.

It is an Ulam number.

It is a Duffinian number.

8161137 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8161137.

It is not an unprimeable number, because it can be changed into a prime (8161187) 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 5 ways as a sum of consecutive naturals, for example, 453388 + ... + 453405.

Almost surely, 2^8161137 is an apocalyptic number.

It is an amenable number.

8161137 is a deficient number, since it is larger than the sum of its proper divisors (3627185).

8161137 is a wasteful number, since it uses less digits than its factorization.

8161137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906799 (or 906796 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 8161137 is about 2856.7703792920. The cubic root of 8161137 is about 201.3338922132. Note that the first 3 decimals are identical.

It can be divided in two parts, 816 and 1137, that added together give a triangular number (1953 = T₆₂).

The spelling of 8161137 in words is "eight million, one hundred sixty-one thousand, one hundred thirty-seven".