197448143 has 2 divisors, whose sum is σ = 197448144. Its totient is φ = 197448142.

The previous prime is 197448109. The next prime is 197448157. The reversal of 197448143 is 341844791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 197448143 - 2¹² = 197444047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 197448143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197448193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98724071 + 98724072.

It is an arithmetic number, because the mean of its divisors is an integer number (98724072).

Almost surely, 2^197448143 is an apocalyptic number.

197448143 is a deficient number, since it is larger than the sum of its proper divisors (1).

197448143 is an equidigital number, since it uses as much as digits as its factorization.

197448143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 41.

The square root of 197448143 is about 14051.6242121685. The cubic root of 197448143 is about 582.3056685649.

The spelling of 197448143 in words is "one hundred ninety-seven million, four hundred forty-eight thousand, one hundred forty-three".