9811145 has 8 divisors (see below), whose sum is σ = 11949504. Its totient is φ = 7731504.

The previous prime is 9811129. The next prime is 9811147. The reversal of 9811145 is 5411189.

9811145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9811145 - 2⁴ = 9811129 is a prime.

It is a super-2 number, since 2×9811145² = 192517132422050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9811147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14309 + ... + 14978.

It is an arithmetic number, because the mean of its divisors is an integer number (1493688).

Almost surely, 2^9811145 is an apocalyptic number.

It is an amenable number.

9811145 is a deficient number, since it is larger than the sum of its proper divisors (2138359).

9811145 is a wasteful number, since it uses less digits than its factorization.

9811145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29359.

The product of its digits is 1440, while the sum is 29.

The square root of 9811145 is about 3132.2747325227. The cubic root of 9811145 is about 214.0785879006.

The spelling of 9811145 in words is "nine million, eight hundred eleven thousand, one hundred forty-five".