128442601 has 8 divisors (see below), whose sum is σ = 147164480. Its totient is φ = 109813968.

The previous prime is 128442553. The next prime is 128442607. The reversal of 128442601 is 106244821.

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 128442601 - 2²³ = 120053993 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 128442601.

It is not an unprimeable number, because it can be changed into a prime (128442607) 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, 20331 + ... + 25888.

It is an arithmetic number, because the mean of its divisors is an integer number (18395560).

Almost surely, 2^128442601 is an apocalyptic number.

It is an amenable number.

128442601 is a deficient number, since it is larger than the sum of its proper divisors (18721879).

128442601 is an equidigital number, since it uses as much as digits as its factorization.

128442601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46623.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 128442601 is about 11333.2520046102. The cubic root of 128442601 is about 504.5486291310.

The spelling of 128442601 in words is "one hundred twenty-eight million, four hundred forty-two thousand, six hundred one".