7164151209 has 12 divisors (see below), whose sum is σ = 10464491700. Its totient is φ = 4722436224.

The previous prime is 7164151201. The next prime is 7164151219. The reversal of 7164151209 is 9021514617.

7164151209 is a `hidden beast` number, since 7 + 1 + 641 + 5 + 1 + 2 + 0 + 9 = 666.

7164151209 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 554461209 + 6609690000 = 23547^2 + 81300^2 .

It is not a de Polignac number, because 7164151209 - 2³ = 7164151201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7164151201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4471204 + ... + 4472805.

It is an arithmetic number, because the mean of its divisors is an integer number (872040975).

Almost surely, 2^7164151209 is an apocalyptic number.

It is an amenable number.

7164151209 is a deficient number, since it is larger than the sum of its proper divisors (3300340491).

7164151209 is a wasteful number, since it uses less digits than its factorization.

7164151209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8944104 (or 8944101 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 7164151209 is about 84641.3091167664. The cubic root of 7164151209 is about 1927.7686552913.

The spelling of 7164151209 in words is "seven billion, one hundred sixty-four million, one hundred fifty-one thousand, two hundred nine".