8159145 has 16 divisors (see below), whose sum is σ = 13183872. Its totient is φ = 4308480.

The previous prime is 8159143. The next prime is 8159183. The reversal of 8159145 is 5419518.

It is not a de Polignac number, because 8159145 - 2¹ = 8159143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8159143) 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, 1096 + ... + 4185.

It is an arithmetic number, because the mean of its divisors is an integer number (823992).

Almost surely, 2^8159145 is an apocalyptic number.

It is an amenable number.

8159145 is a deficient number, since it is larger than the sum of its proper divisors (5024727).

8159145 is a wasteful number, since it uses less digits than its factorization.

8159145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5392.

The product of its digits is 7200, while the sum is 33.

The square root of 8159145 is about 2856.4217125628. The cubic root of 8159145 is about 201.3175101107.

The spelling of 8159145 in words is "eight million, one hundred fifty-nine thousand, one hundred forty-five".