128414611 has 4 divisors (see below), whose sum is σ = 138292672. Its totient is φ = 118536552.

The previous prime is 128414603. The next prime is 128414623. The reversal of 128414611 is 116414821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 128414611 - 2³ = 128414603 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 128414611.

It is not an unprimeable number, because it can be changed into a prime (128114611) 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 3 ways as a sum of consecutive naturals, for example, 4939011 + ... + 4939036.

It is an arithmetic number, because the mean of its divisors is an integer number (34573168).

Almost surely, 2^128414611 is an apocalyptic number.

128414611 is a deficient number, since it is larger than the sum of its proper divisors (9878061).

128414611 is an equidigital number, since it uses as much as digits as its factorization.

128414611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9878060.

The product of its digits is 1536, while the sum is 28.

The square root of 128414611 is about 11332.0170755254. The cubic root of 128414611 is about 504.5119763331.

The spelling of 128414611 in words is "one hundred twenty-eight million, four hundred fourteen thousand, six hundred eleven".