128983453 has 4 divisors (see below), whose sum is σ = 129315420. Its totient is φ = 128651488.

The previous prime is 128983451. The next prime is 128983469. The reversal of 128983453 is 354389821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 354389821 = 3079 ⋅115099.

It can be written as a sum of positive squares in 2 ways, for example, as 20052484 + 108930969 = 4478^2 + 10437^2 .

It is a cyclic number.

It is not a de Polignac number, because 128983453 - 2¹ = 128983451 is a prime.

It is a super-2 number, since 2×128983453² = 33273462295606418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128983451) 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 in 3 ways as a sum of consecutive naturals, for example, 165400 + ... + 166177.

It is an arithmetic number, because the mean of its divisors is an integer number (32328855).

Almost surely, 2^128983453 is an apocalyptic number.

It is an amenable number.

128983453 is a deficient number, since it is larger than the sum of its proper divisors (331967).

128983453 is an equidigital number, since it uses as much as digits as its factorization.

128983453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331966.

The product of its digits is 207360, while the sum is 43.

The square root of 128983453 is about 11357.0882271822. The cubic root of 128983453 is about 505.2558295963.

The spelling of 128983453 in words is "one hundred twenty-eight million, nine hundred eighty-three thousand, four hundred fifty-three".