128290597 has 2 divisors, whose sum is σ = 128290598. Its totient is φ = 128290596.

The previous prime is 128290583. The next prime is 128290607. The reversal of 128290597 is 795092821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128278276 + 12321 = 11326^2 + 111^2 .

It is an emirp because it is prime and its reverse (795092821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128290597 - 2⁷ = 128290469 is a prime.

It is a super-3 number, since 3×128290597³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128290697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64145298 + 64145299.

It is an arithmetic number, because the mean of its divisors is an integer number (64145299).

Almost surely, 2^128290597 is an apocalyptic number.

It is an amenable number.

128290597 is a deficient number, since it is larger than the sum of its proper divisors (1).

128290597 is an equidigital number, since it uses as much as digits as its factorization.

128290597 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 128290597 is about 11326.5439124209. The cubic root of 128290597 is about 504.3495163675.

The spelling of 128290597 in words is "one hundred twenty-eight million, two hundred ninety thousand, five hundred ninety-seven".