128850113 has 8 divisors (see below), whose sum is σ = 149032128. Its totient is φ = 109111824.

The previous prime is 128850101. The next prime is 128850121. The reversal of 128850113 is 311058821.

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 128850113 - 2²⁰ = 127801537 is a prime.

It is a super-2 number, since 2×128850113² = 33204703240225538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (128850173) 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, 110306 + ... + 111467.

It is an arithmetic number, because the mean of its divisors is an integer number (18629016).

Almost surely, 2^128850113 is an apocalyptic number.

It is an amenable number.

128850113 is a deficient number, since it is larger than the sum of its proper divisors (20182015).

128850113 is an equidigital number, since it uses as much as digits as its factorization.

128850113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221863.

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 128850113 is about 11351.2163665398. The cubic root of 128850113 is about 505.0816624465.

The spelling of 128850113 in words is "one hundred twenty-eight million, eight hundred fifty thousand, one hundred thirteen".