128480197 has 2 divisors, whose sum is σ = 128480198. Its totient is φ = 128480196.

The previous prime is 128480137. The next prime is 128480227. The reversal of 128480197 is 791084821.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128346241 + 133956 = 11329^2 + 366^2 .

It is a cyclic number.

It is not a de Polignac number, because 128480197 - 2⁷ = 128480069 is a prime.

It is a super-2 number, since 2×128480197² = 33014322042317618, which contains 22 as substring.

It is a Chen prime.

It is equal to p_7296664 and since 128480197 and 7296664 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128480137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64240098 + 64240099.

It is an arithmetic number, because the mean of its divisors is an integer number (64240099).

Almost surely, 2^128480197 is an apocalyptic number.

It is an amenable number.

128480197 is a deficient number, since it is larger than the sum of its proper divisors (1).

128480197 is an equidigital number, since it uses as much as digits as its factorization.

128480197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 128480197 is about 11334.9105422143. The cubic root of 128480197 is about 504.5978525705.

The spelling of 128480197 in words is "one hundred twenty-eight million, four hundred eighty thousand, one hundred ninety-seven".