128983 has 2 divisors, whose sum is σ = 128984. Its totient is φ = 128982.

The previous prime is 128981. The next prime is 128987. The reversal of 128983 is 389821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128983 - 2¹ = 128981 is a prime.

It is a super-2 number, since 2×128983² = 33273228578, which contains 22 as substring.

Together with 128981, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64491 + 64492.

It is an arithmetic number, because the mean of its divisors is an integer number (64492).

2¹²⁸⁹⁸³ is an apocalyptic number.

128983 is a deficient number, since it is larger than the sum of its proper divisors (1).

128983 is an equidigital number, since it uses as much as digits as its factorization.

128983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 31.

The square root of 128983 is about 359.1420331846. The cubic root of 128983 is about 50.5255238096.

It can be divided in two parts, 128 and 983, that added together give a palindrome (1111).

The spelling of 128983 in words is "one hundred twenty-eight thousand, nine hundred eighty-three".