961166 has 4 divisors (see below), whose sum is σ = 1441752. Its totient is φ = 480582.

The previous prime is 961159. The next prime is 961183. The reversal of 961166 is 661169.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 661169 = 353 ⋅1873.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

961166 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 as a sum of consecutive naturals, namely, 240290 + ... + 240293.

It is an arithmetic number, because the mean of its divisors is an integer number (360438).

2⁹⁶¹¹⁶⁶ is an apocalyptic number.

961166 is a deficient number, since it is larger than the sum of its proper divisors (480586).

961166 is a wasteful number, since it uses less digits than its factorization.

961166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480585.

The product of its digits is 1944, while the sum is 29.

The square root of 961166 is about 980.3907384303. The cubic root of 961166 is about 98.6884057488.

The spelling of 961166 in words is "nine hundred sixty-one thousand, one hundred sixty-six".