128488107 has 8 divisors (see below), whose sum is σ = 186891840. Its totient is φ = 77871560.

The previous prime is 128488069. The next prime is 128488109. The reversal of 128488107 is 701884821.

It is a happy number.

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 128488107 - 2¹⁵ = 128455339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128488109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1946757 + ... + 1946822.

It is an arithmetic number, because the mean of its divisors is an integer number (23361480).

Almost surely, 2^128488107 is an apocalyptic number.

128488107 is a deficient number, since it is larger than the sum of its proper divisors (58403733).

128488107 is a wasteful number, since it uses less digits than its factorization.

128488107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3893593.

The product of its (nonzero) digits is 28672, while the sum is 39.

The square root of 128488107 is about 11335.2594588743. The cubic root of 128488107 is about 504.6082076997.

The spelling of 128488107 in words is "one hundred twenty-eight million, four hundred eighty-eight thousand, one hundred seven".