128351 has 2 divisors, whose sum is σ = 128352. Its totient is φ = 128350.

The previous prime is 128347. The next prime is 128377. The reversal of 128351 is 153821.

128351 is nontrivially palindromic in base 2.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128351 - 2² = 128347 is a prime.

It is a Chen prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64175 + 64176.

It is an arithmetic number, because the mean of its divisors is an integer number (64176).

2¹²⁸³⁵¹ is an apocalyptic number.

128351 is a deficient number, since it is larger than the sum of its proper divisors (1).

128351 is an equidigital number, since it uses as much as digits as its factorization.

128351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240, while the sum is 20.

The square root of 128351 is about 358.2610779864. The cubic root of 128351 is about 50.4428658161.

The spelling of 128351 in words is "one hundred twenty-eight thousand, three hundred fifty-one".