8145202009 has 8 divisors (see below), whose sum is σ = 9309575808. Its totient is φ = 6981021600.

The previous prime is 8145202007. The next prime is 8145202031. The reversal of 8145202009 is 9002025418.

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

It is not a de Polignac number, because 8145202009 - 2¹ = 8145202007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8145202003) 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, 57309 + ... + 139909.

It is an arithmetic number, because the mean of its divisors is an integer number (1163696976).

Almost surely, 2^8145202009 is an apocalyptic number.

It is an amenable number.

8145202009 is a deficient number, since it is larger than the sum of its proper divisors (1164373799).

8145202009 is a wasteful number, since it uses less digits than its factorization.

8145202009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96695.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 8145202009 is about 90250.7728997375. The cubic root of 8145202009 is about 2012.0276897571.

The spelling of 8145202009 in words is "eight billion, one hundred forty-five million, two hundred two thousand, nine".