128107670 has 8 divisors (see below), whose sum is σ = 230593824. Its totient is φ = 51243064.

The previous prime is 128107669. The next prime is 128107673. The reversal of 128107670 is 76701821.

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

It is a super-2 number, since 2×128107670² = 32823150225657800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128107673) 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, 6405374 + ... + 6405393.

It is an arithmetic number, because the mean of its divisors is an integer number (28824228).

Almost surely, 2^128107670 is an apocalyptic number.

128107670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128107670 is a deficient number, since it is larger than the sum of its proper divisors (102486154).

128107670 is a wasteful number, since it uses less digits than its factorization.

128107670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12810774.

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 128107670 is about 11318.4658854458. The cubic root of 128107670 is about 504.1096883753.

The spelling of 128107670 in words is "one hundred twenty-eight million, one hundred seven thousand, six hundred seventy".