2147180172 has 24 divisors (see below), whose sum is σ = 5304798576. Its totient is φ = 673625088.

The previous prime is 2147180159. The next prime is 2147180179. The reversal of 2147180172 is 2710817412.

It is a super-2 number, since 2×2147180172² = 9220765382059899168, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2147180179) 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, 5262493 + ... + 5262900.

It is an arithmetic number, because the mean of its divisors is an integer number (221033274).

Almost surely, 2^2147180172 is an apocalyptic number.

It is an amenable number.

2147180172 is an abundant number, since it is smaller than the sum of its proper divisors (3157618404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2147180172 is a wasteful number, since it uses less digits than its factorization.

2147180172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10525417 (or 10525415 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 33.

The square root of 2147180172 is about 46337.6755135602. The cubic root of 2147180172 is about 1290.0983784115.

Adding to 2147180172 its reverse (2710817412), we get a palindrome (4857997584).

The spelling of 2147180172 in words is "two billion, one hundred forty-seven million, one hundred eighty thousand, one hundred seventy-two".