128700130 has 16 divisors (see below), whose sum is σ = 249480504. Its totient is φ = 47520000.

The previous prime is 128700109. The next prime is 128700133. The reversal of 128700130 is 31007821.

It can be written as a sum of positive squares in 4 ways, for example, as 44262409 + 84437721 = 6653^2 + 9189^2 .

It is not an unprimeable number, because it can be changed into a prime (128700133) 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, 494871 + ... + 495130.

Almost surely, 2^128700130 is an apocalyptic number.

128700130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128700130 is a deficient number, since it is larger than the sum of its proper divisors (120780374).

128700130 is a wasteful number, since it uses less digits than its factorization.

128700130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990021.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 128700130 is about 11344.6079703091. The cubic root of 128700130 is about 504.8856127550.

Adding to 128700130 its reverse (31007821), we get a palindrome (159707951).

The spelling of 128700130 in words is "one hundred twenty-eight million, seven hundred thousand, one hundred thirty".