128801107 has 4 divisors (see below), whose sum is σ = 132282256. Its totient is φ = 125319960.

The previous prime is 128801051. The next prime is 128801111. The reversal of 128801107 is 701108821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 701108821 = 7 ⋅100158403.

It is a cyclic number.

It is not a de Polignac number, because 128801107 - 2⁷ = 128800979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128801117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1740519 + ... + 1740592.

It is an arithmetic number, because the mean of its divisors is an integer number (33070564).

Almost surely, 2^128801107 is an apocalyptic number.

128801107 is a deficient number, since it is larger than the sum of its proper divisors (3481149).

128801107 is an equidigital number, since it uses as much as digits as its factorization.

128801107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3481148.

The product of its (nonzero) digits is 896, while the sum is 28.

The square root of 128801107 is about 11349.0575379632. The cubic root of 128801107 is about 505.0176211869.

Adding to 128801107 its reverse (701108821), we get a palindrome (829909928).

The spelling of 128801107 in words is "one hundred twenty-eight million, eight hundred one thousand, one hundred seven".