128845373 has 2 divisors, whose sum is σ = 128845374. Its totient is φ = 128845372.

The previous prime is 128845357. The next prime is 128845399. The reversal of 128845373 is 373548821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128074489 + 770884 = 11317^2 + 878^2 .

It is a cyclic number.

It is not a de Polignac number, because 128845373 - 2⁴ = 128845357 is a prime.

It is a super-2 number, since 2×128845373² = 33202260287018258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 128845373.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128845313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64422686 + 64422687.

It is an arithmetic number, because the mean of its divisors is an integer number (64422687).

Almost surely, 2^128845373 is an apocalyptic number.

It is an amenable number.

128845373 is a deficient number, since it is larger than the sum of its proper divisors (1).

128845373 is an equidigital number, since it uses as much as digits as its factorization.

128845373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 41.

The square root of 128845373 is about 11351.0075764225. The cubic root of 128845373 is about 505.0754689028.

The spelling of 128845373 in words is "one hundred twenty-eight million, eight hundred forty-five thousand, three hundred seventy-three".