128453497 has 2 divisors, whose sum is σ = 128453498. Its totient is φ = 128453496.

The previous prime is 128453489. The next prime is 128453527. The reversal of 128453497 is 794354821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80622441 + 47831056 = 8979^2 + 6916^2 .

It is a cyclic number.

It is not a de Polignac number, because 128453497 - 2³ = 128453489 is a prime.

It is not a weakly prime, because it can be changed into another prime (128453467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64226748 + 64226749.

It is an arithmetic number, because the mean of its divisors is an integer number (64226749).

Almost surely, 2^128453497 is an apocalyptic number.

It is an amenable number.

128453497 is a deficient number, since it is larger than the sum of its proper divisors (1).

128453497 is an equidigital number, since it uses as much as digits as its factorization.

128453497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 43.

The square root of 128453497 is about 11333.7327037477. The cubic root of 128453497 is about 504.5628959614.

The spelling of 128453497 in words is "one hundred twenty-eight million, four hundred fifty-three thousand, four hundred ninety-seven".