4073145645 has 24 divisors (see below), whose sum is σ = 6734065248. Its totient is φ = 2102261280.

The previous prime is 4073145611. The next prime is 4073145649. The reversal of 4073145645 is 5465413704.

It is a happy number.

It is not a de Polignac number, because 4073145645 - 2¹¹ = 4073143597 is a prime.

It is a super-3 number, since 3×4073145645³ (a number of 30 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4073145649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 126867 + ... + 155696.

It is an arithmetic number, because the mean of its divisors is an integer number (280586052).

Almost surely, 2^4073145645 is an apocalyptic number.

It is an amenable number.

4073145645 is a deficient number, since it is larger than the sum of its proper divisors (2660919603).

4073145645 is a wasteful number, since it uses less digits than its factorization.

4073145645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282633 (or 282602 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 39.

The square root of 4073145645 is about 63821.2005919663. The cubic root of 4073145645 is about 1597.0186205871.

The spelling of 4073145645 in words is "four billion, seventy-three million, one hundred forty-five thousand, six hundred forty-five".