8817038145 has 12 divisors (see below), whose sum is σ = 15282866196. Its totient is φ = 4702420320.

The previous prime is 8817038143. The next prime is 8817038161. The reversal of 8817038145 is 5418307188.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1218777921 + 7598260224 = 34911^2 + 87168^2 .

It is not a de Polignac number, because 8817038145 - 2¹ = 8817038143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 195934181 = 8817038145 / (8 + 8 + 1 + 7 + 0 + 3 + 8 + 1 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 8817038145.

It is not an unprimeable number, because it can be changed into a prime (8817038143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97967046 + ... + 97967135.

It is an arithmetic number, because the mean of its divisors is an integer number (1273572183).

Almost surely, 2^8817038145 is an apocalyptic number.

It is an amenable number.

8817038145 is a deficient number, since it is larger than the sum of its proper divisors (6465828051).

8817038145 is a wasteful number, since it uses less digits than its factorization.

8817038145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195934192 (or 195934189 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The square root of 8817038145 is about 93899.0848996943. The cubic root of 8817038145 is about 2065.8918066229.

The spelling of 8817038145 in words is "eight billion, eight hundred seventeen million, thirty-eight thousand, one hundred forty-five".