2172115159 has 8 divisors (see below), whose sum is σ = 2181912480. Its totient is φ = 2162330016.

The previous prime is 2172115157. The next prime is 2172115171. The reversal of 2172115159 is 9515112712.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2172115159 - 2¹ = 2172115157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172115157) 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, 639237 + ... + 642625.

It is an arithmetic number, because the mean of its divisors is an integer number (272739060).

Almost surely, 2^2172115159 is an apocalyptic number.

2172115159 is a deficient number, since it is larger than the sum of its proper divisors (9797321).

2172115159 is a wasteful number, since it uses less digits than its factorization.

2172115159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6089.

The product of its digits is 6300, while the sum is 34.

The square root of 2172115159 is about 46605.9562609759. The cubic root of 2172115159 is about 1295.0730983419.

The spelling of 2172115159 in words is "two billion, one hundred seventy-two million, one hundred fifteen thousand, one hundred fifty-nine".