128131283 has 8 divisors (see below), whose sum is σ = 146518368. Its totient is φ = 109764864.

The previous prime is 128131249. The next prime is 128131291. The reversal of 128131283 is 382131821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128131283 - 2⁶ = 128131219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128130283) 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 7 ways as a sum of consecutive naturals, for example, 11885 + ... + 19937.

It is an arithmetic number, because the mean of its divisors is an integer number (18314796).

Almost surely, 2^128131283 is an apocalyptic number.

128131283 is a deficient number, since it is larger than the sum of its proper divisors (18387085).

128131283 is an equidigital number, since it uses as much as digits as its factorization.

128131283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10333.

The product of its digits is 2304, while the sum is 29.

The square root of 128131283 is about 11319.5089557807. The cubic root of 128131283 is about 504.1406592265.

The spelling of 128131283 in words is "one hundred twenty-eight million, one hundred thirty-one thousand, two hundred eighty-three".