8002172145 has 32 divisors (see below), whose sum is σ = 14702561280. Its totient is φ = 3675637440.

The previous prime is 8002172131. The next prime is 8002172177. The reversal of 8002172145 is 5412712008.

It is not a de Polignac number, because 8002172145 - 2²⁰ = 8001123569 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1273129 + ... + 1279398.

It is an arithmetic number, because the mean of its divisors is an integer number (459455040).

Almost surely, 2^8002172145 is an apocalyptic number.

It is an amenable number.

8002172145 is a deficient number, since it is larger than the sum of its proper divisors (6700389135).

8002172145 is a wasteful number, since it uses less digits than its factorization.

8002172145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2552565.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 8002172145 is about 89454.8609355579. The cubic root of 8002172145 is about 2000.1809957031.

The spelling of 8002172145 in words is "eight billion, two million, one hundred seventy-two thousand, one hundred forty-five".