9807145 has 16 divisors (see below), whose sum is σ = 12055680. Its totient is φ = 7657344.

The previous prime is 9807143. The next prime is 9807151. The reversal of 9807145 is 5417089.

It is a happy number.

9807145 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 9807145 - 2¹ = 9807143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9807145.

It is not an unprimeable number, because it can be changed into a prime (9807143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70486 + ... + 70624.

It is an arithmetic number, because the mean of its divisors is an integer number (753480).

Almost surely, 2^9807145 is an apocalyptic number.

It is an amenable number.

9807145 is a deficient number, since it is larger than the sum of its proper divisors (2248535).

9807145 is a wasteful number, since it uses less digits than its factorization.

9807145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 9807145 is about 3131.6361538340. The cubic root of 9807145 is about 214.0494906936.

The spelling of 9807145 in words is "nine million, eight hundred seven thousand, one hundred forty-five".