128658353 has 2 divisors, whose sum is σ = 128658354. Its totient is φ = 128658352.

The previous prime is 128658349. The next prime is 128658421. The reversal of 128658353 is 353856821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64770304 + 63888049 = 8048^2 + 7993^2 .

It is a cyclic number.

It is not a de Polignac number, because 128658353 - 2² = 128658349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 128658353.

It is not a weakly prime, because it can be changed into another prime (128658053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64329176 + 64329177.

It is an arithmetic number, because the mean of its divisors is an integer number (64329177).

Almost surely, 2^128658353 is an apocalyptic number.

It is an amenable number.

128658353 is a deficient number, since it is larger than the sum of its proper divisors (1).

128658353 is an equidigital number, since it uses as much as digits as its factorization.

128658353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 41.

The square root of 128658353 is about 11342.7665496562. The cubic root of 128658353 is about 504.8309769933.

The spelling of 128658353 in words is "one hundred twenty-eight million, six hundred fifty-eight thousand, three hundred fifty-three".