8165961 has 8 divisors (see below), whose sum is σ = 12097760. Its totient is φ = 5443956.

The previous prime is 8165957. The next prime is 8165977. The reversal of 8165961 is 1695618.

It is not a de Polignac number, because 8165961 - 2² = 8165957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8165761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151195 + ... + 151248.

It is an arithmetic number, because the mean of its divisors is an integer number (1512220).

Almost surely, 2^8165961 is an apocalyptic number.

It is an amenable number.

8165961 is a deficient number, since it is larger than the sum of its proper divisors (3931799).

8165961 is a wasteful number, since it uses less digits than its factorization.

8165961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302452 (or 302446 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 8165961 is about 2857.6145646325. The cubic root of 8165961 is about 201.3735534922.

The spelling of 8165961 in words is "eight million, one hundred sixty-five thousand, nine hundred sixty-one".