196722543 has 4 divisors (see below), whose sum is σ = 262296728. Its totient is φ = 131148360.

The previous prime is 196722541. The next prime is 196722563. The reversal of 196722543 is 345227691.

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

It is not a de Polignac number, because 196722543 - 2¹ = 196722541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196722541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32787088 + ... + 32787093.

It is an arithmetic number, because the mean of its divisors is an integer number (65574182).

Almost surely, 2^196722543 is an apocalyptic number.

196722543 is a deficient number, since it is larger than the sum of its proper divisors (65574185).

196722543 is an equidigital number, since it uses as much as digits as its factorization.

196722543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65574184.

The product of its digits is 90720, while the sum is 39.

The square root of 196722543 is about 14025.7813686083. The cubic root of 196722543 is about 581.5914901170.

The spelling of 196722543 in words is "one hundred ninety-six million, seven hundred twenty-two thousand, five hundred forty-three".