2173160399 has 4 divisors (see below), whose sum is σ = 2176706136. Its totient is φ = 2169614664.

The previous prime is 2173160317. The next prime is 2173160401. The reversal of 2173160399 is 9930613712.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2173160399 - 2¹² = 2173156303 is a prime.

It is a super-2 number, since 2×2173160399² = 9445252239563678402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2173160299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1771949 + ... + 1773174.

It is an arithmetic number, because the mean of its divisors is an integer number (544176534).

Almost surely, 2^2173160399 is an apocalyptic number.

2173160399 is a deficient number, since it is larger than the sum of its proper divisors (3545737).

2173160399 is an equidigital number, since it uses as much as digits as its factorization.

2173160399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3545736.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 2173160399 is about 46617.1685004570. The cubic root of 2173160399 is about 1295.2807983690.

The spelling of 2173160399 in words is "two billion, one hundred seventy-three million, one hundred sixty thousand, three hundred ninety-nine".