9145320705 has 12 divisors (see below), whose sum is σ = 15851889300. Its totient is φ = 4877504352.

The previous prime is 9145320703. The next prime is 9145320719. The reversal of 9145320705 is 5070235419.

It can be written as a sum of positive squares in 2 ways, for example, as 2553179841 + 6592140864 = 50529^2 + 81192^2 .

It is not a de Polignac number, because 9145320705 - 2¹ = 9145320703 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9145320705.

It is not an unprimeable number, because it can be changed into a prime (9145320703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101614630 + ... + 101614719.

It is an arithmetic number, because the mean of its divisors is an integer number (1320990775).

Almost surely, 2^9145320705 is an apocalyptic number.

It is an amenable number.

9145320705 is a deficient number, since it is larger than the sum of its proper divisors (6706568595).

9145320705 is a wasteful number, since it uses less digits than its factorization.

9145320705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203229360 (or 203229357 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 9145320705 is about 95631.1701538782. The cubic root of 9145320705 is about 2091.2196284122.

The spelling of 9145320705 in words is "nine billion, one hundred forty-five million, three hundred twenty thousand, seven hundred five".