961165 has 4 divisors (see below), whose sum is σ = 1153404. Its totient is φ = 768928.

The previous prime is 961159. The next prime is 961183. The reversal of 961165 is 561169.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 561169 = 7 ⋅80167.

It can be written as a sum of positive squares in 2 ways, for example, as 181476 + 779689 = 426^2 + 883^2 .

It is a cyclic number.

It is not a de Polignac number, because 961165 - 2³ = 961157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 96112 + ... + 96121.

It is an arithmetic number, because the mean of its divisors is an integer number (288351).

2⁹⁶¹¹⁶⁵ is an apocalyptic number.

It is an amenable number.

961165 is a deficient number, since it is larger than the sum of its proper divisors (192239).

961165 is a wasteful number, since it uses less digits than its factorization.

961165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192238.

The product of its digits is 1620, while the sum is 28.

The square root of 961165 is about 980.3902284295. The cubic root of 961165 is about 98.6883715236.

The spelling of 961165 in words is "nine hundred sixty-one thousand, one hundred sixty-five".