128294013 has 8 divisors (see below), whose sum is σ = 173119968. Its totient is φ = 84498704.

The previous prime is 128294011. The next prime is 128294039. The reversal of 128294013 is 310492821.

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 128294013 - 2¹ = 128294011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128294011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257370 + ... + 257867.

It is an arithmetic number, because the mean of its divisors is an integer number (21639996).

Almost surely, 2^128294013 is an apocalyptic number.

It is an amenable number.

128294013 is a deficient number, since it is larger than the sum of its proper divisors (44825955).

128294013 is an equidigital number, since it uses as much as digits as its factorization.

128294013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515323.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 128294013 is about 11326.6947076365. The cubic root of 128294013 is about 504.3539927742.

The spelling of 128294013 in words is "one hundred twenty-eight million, two hundred ninety-four thousand, thirteen".