9145943073 has 24 divisors (see below), whose sum is σ = 13446143360. Its totient is φ = 5988958560.

The previous prime is 9145943057. The next prime is 9145943119. The reversal of 9145943073 is 3703495419.

9145943073 is a `hidden beast` number, since 9 + 145 + 9 + 430 + 73 = 666.

It is not a de Polignac number, because 9145943073 - 2⁴ = 9145943057 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9145943003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 394440 + ... + 416982.

Almost surely, 2^9145943073 is an apocalyptic number.

It is an amenable number.

9145943073 is a deficient number, since it is larger than the sum of its proper divisors (4300200287).

9145943073 is a wasteful number, since it uses less digits than its factorization.

9145943073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23349 (or 23346 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The square root of 9145943073 is about 95634.4241003207. The cubic root of 9145943073 is about 2091.2670653728.

The spelling of 9145943073 in words is "nine billion, one hundred forty-five million, nine hundred forty-three thousand, seventy-three".