2173718147 has 2 divisors, whose sum is σ = 2173718148. Its totient is φ = 2173718146.

The previous prime is 2173718089. The next prime is 2173718149. The reversal of 2173718147 is 7418173712.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2173718147 - 2⁶ = 2173718083 is a prime.

It is a super-2 number, since 2×2173718147² = 9450101165194227218, which contains 22 as substring.

Together with 2173718149, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2173718149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1086859073 + 1086859074.

It is an arithmetic number, because the mean of its divisors is an integer number (1086859074).

Almost surely, 2^2173718147 is an apocalyptic number.

2173718147 is a deficient number, since it is larger than the sum of its proper divisors (1).

2173718147 is an equidigital number, since it uses as much as digits as its factorization.

2173718147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 65856, while the sum is 41.

The square root of 2173718147 is about 46623.1503332840. The cubic root of 2173718147 is about 1295.3916014308.

The spelling of 2173718147 in words is "two billion, one hundred seventy-three million, seven hundred eighteen thousand, one hundred forty-seven".