8160945 has 16 divisors (see below), whose sum is σ = 14062272. Its totient is φ = 4017600.

The previous prime is 8160941. The next prime is 8160947. The reversal of 8160945 is 5490618.

8160945 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8160945 - 2² = 8160941 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8160941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20731 + ... + 21120.

It is an arithmetic number, because the mean of its divisors is an integer number (878892).

Almost surely, 2^8160945 is an apocalyptic number.

It is an amenable number.

8160945 is a deficient number, since it is larger than the sum of its proper divisors (5901327).

8160945 is a wasteful number, since it uses less digits than its factorization.

8160945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41872.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 8160945 is about 2856.7367747134. The cubic root of 8160945 is about 201.3323133315.

The spelling of 8160945 in words is "eight million, one hundred sixty thousand, nine hundred forty-five".