1045027161 has 6 divisors (see below), whose sum is σ = 1509483690. Its totient is φ = 696684768.

The previous prime is 1045027157. The next prime is 1045027169. The reversal of 1045027161 is 1617205401.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 650250000 + 394777161 = 25500^2 + 19869^2 .

It is not a de Polignac number, because 1045027161 - 2² = 1045027157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1045027169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58057056 + ... + 58057073.

It is an arithmetic number, because the mean of its divisors is an integer number (251580615).

Almost surely, 2^1045027161 is an apocalyptic number.

It is an amenable number.

1045027161 is a deficient number, since it is larger than the sum of its proper divisors (464456529).

1045027161 is a wasteful number, since it uses less digits than its factorization.

1045027161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116114135 (or 116114132 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 1045027161 is about 32326.8798525314. The cubic root of 1045027161 is about 1014.7892534053.

The spelling of 1045027161 in words is "one billion, forty-five million, twenty-seven thousand, one hundred sixty-one".