7065161 has 4 divisors (see below), whose sum is σ = 7237524. Its totient is φ = 6892800.

The previous prime is 7065143. The next prime is 7065167. The reversal of 7065161 is 1615607.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2421136 + 4644025 = 1556^2 + 2155^2 .

It is a cyclic number.

It is not a de Polignac number, because 7065161 - 2¹⁴ = 7048777 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7065161.

It is not an unprimeable number, because it can be changed into a prime (7065167) 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, 86120 + ... + 86201.

It is an arithmetic number, because the mean of its divisors is an integer number (1809381).

Almost surely, 2^7065161 is an apocalyptic number.

It is an amenable number.

7065161 is a deficient number, since it is larger than the sum of its proper divisors (172363).

7065161 is a wasteful number, since it uses less digits than its factorization.

7065161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172362.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 7065161 is about 2658.0370576800. The cubic root of 7065161 is about 191.8848502973.

The spelling of 7065161 in words is "seven million, sixty-five thousand, one hundred sixty-one".