8127145 has 16 divisors (see below), whose sum is σ = 10619280. Its totient is φ = 5935104.

The previous prime is 8127131. The next prime is 8127169. The reversal of 8127145 is 5417218.

It can be written as a sum of positive squares in 8 ways, for example, as 123904 + 8003241 = 352^2 + 2829^2 .

It is a cyclic number.

It is not a de Polignac number, because 8127145 - 2¹¹ = 8125097 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5661 + ... + 6949.

It is an arithmetic number, because the mean of its divisors is an integer number (663705).

Almost surely, 2^8127145 is an apocalyptic number.

It is an amenable number.

8127145 is a deficient number, since it is larger than the sum of its proper divisors (2492135).

8127145 is a wasteful number, since it uses less digits than its factorization.

8127145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404.

The product of its digits is 2240, while the sum is 28.

The square root of 8127145 is about 2850.8147958084. The cubic root of 8127145 is about 201.0539775662.

The spelling of 8127145 in words is "eight million, one hundred twenty-seven thousand, one hundred forty-five".