2172196543 has 8 divisors (see below), whose sum is σ = 2387759616. Its totient is φ = 1959648600.

The previous prime is 2172196529. The next prime is 2172196553. The reversal of 2172196543 is 3456912712.

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 2172196543 - 2²¹ = 2170099391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2172196496 and 2172196505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172196553) 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 7 ways as a sum of consecutive naturals, for example, 752271 + ... + 755152.

It is an arithmetic number, because the mean of its divisors is an integer number (298469952).

Almost surely, 2^2172196543 is an apocalyptic number.

2172196543 is a deficient number, since it is larger than the sum of its proper divisors (215563073).

2172196543 is a wasteful number, since it uses less digits than its factorization.

2172196543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507565.

The product of its digits is 90720, while the sum is 40.

The square root of 2172196543 is about 46606.8293600841. The cubic root of 2172196543 is about 1295.0892725784.

The spelling of 2172196543 in words is "two billion, one hundred seventy-two million, one hundred ninety-six thousand, five hundred forty-three".