128573983 has 2 divisors, whose sum is σ = 128573984. Its totient is φ = 128573982.

The previous prime is 128573953. The next prime is 128573987. The reversal of 128573983 is 389375821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128573983 - 2¹⁷ = 128442911 is a prime.

It is a super-3 number, since 3×128573983³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128573987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64286991 + 64286992.

It is an arithmetic number, because the mean of its divisors is an integer number (64286992).

Almost surely, 2^128573983 is an apocalyptic number.

128573983 is a deficient number, since it is larger than the sum of its proper divisors (1).

128573983 is an equidigital number, since it uses as much as digits as its factorization.

128573983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 46.

The square root of 128573983 is about 11339.0468294297. The cubic root of 128573983 is about 504.7206022366.

The spelling of 128573983 in words is "one hundred twenty-eight million, five hundred seventy-three thousand, nine hundred eighty-three".