128043373 has 2 divisors, whose sum is σ = 128043374. Its totient is φ = 128043372.

The previous prime is 128043367. The next prime is 128043397. The reversal of 128043373 is 373340821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96884649 + 31158724 = 9843^2 + 5582^2 .

It is a cyclic number.

It is not a de Polignac number, because 128043373 - 2²¹ = 125946221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128043313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64021686 + 64021687.

It is an arithmetic number, because the mean of its divisors is an integer number (64021687).

Almost surely, 2^128043373 is an apocalyptic number.

It is an amenable number.

128043373 is a deficient number, since it is larger than the sum of its proper divisors (1).

128043373 is an equidigital number, since it uses as much as digits as its factorization.

128043373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 128043373 is about 11315.6251705330. The cubic root of 128043373 is about 504.0253370251.

The spelling of 128043373 in words is "one hundred twenty-eight million, forty-three thousand, three hundred seventy-three".