197449123 has 2 divisors, whose sum is σ = 197449124. Its totient is φ = 197449122.

The previous prime is 197449103. The next prime is 197449151. The reversal of 197449123 is 321944791.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 197449123 - 2⁹ = 197448611 is a prime.

It is not a weakly prime, because it can be changed into another prime (197449103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98724561 + 98724562.

It is an arithmetic number, because the mean of its divisors is an integer number (98724562).

Almost surely, 2^197449123 is an apocalyptic number.

197449123 is a deficient number, since it is larger than the sum of its proper divisors (1).

197449123 is an equidigital number, since it uses as much as digits as its factorization.

197449123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 40.

The square root of 197449123 is about 14051.6590835389. The cubic root of 197449123 is about 582.3066319548.

The spelling of 197449123 in words is "one hundred ninety-seven million, four hundred forty-nine thousand, one hundred twenty-three".