128700914 has 16 divisors (see below), whose sum is σ = 204629976. Its totient is φ = 60499200.

The previous prime is 128700883. The next prime is 128700917. The reversal of 128700914 is 419007821.

It can be written as a sum of positive squares in 4 ways, for example, as 111619225 + 17081689 = 10565^2 + 4133^2 .

It is not an unprimeable number, because it can be changed into a prime (128700917) 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, 45584 + ... + 48324.

Almost surely, 2^128700914 is an apocalyptic number.

128700914 is a deficient number, since it is larger than the sum of its proper divisors (75929062).

128700914 is a wasteful number, since it uses less digits than its factorization.

128700914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4141.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 128700914 is about 11344.6425241168. The cubic root of 128700914 is about 504.8866379535.

The spelling of 128700914 in words is "one hundred twenty-eight million, seven hundred thousand, nine hundred fourteen".