2173572143 has 2 divisors, whose sum is σ = 2173572144. Its totient is φ = 2173572142.

The previous prime is 2173572133. The next prime is 2173572157. The reversal of 2173572143 is 3412753712.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2173572143 - 2¹⁶ = 2173506607 is a prime.

It is a super-2 number, since 2×2173572143² = 9448831721651224898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2173572113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1086786071 + 1086786072.

It is an arithmetic number, because the mean of its divisors is an integer number (1086786072).

Almost surely, 2^2173572143 is an apocalyptic number.

2173572143 is a deficient number, since it is larger than the sum of its proper divisors (1).

2173572143 is an equidigital number, since it uses as much as digits as its factorization.

2173572143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 35.

The square root of 2173572143 is about 46621.5845183323. The cubic root of 2173572143 is about 1295.3625978868.

The spelling of 2173572143 in words is "two billion, one hundred seventy-three million, five hundred seventy-two thousand, one hundred forty-three".