128445514 has 8 divisors (see below), whose sum is σ = 194185728. Its totient is φ = 63716940.

The previous prime is 128445511. The next prime is 128445613. The reversal of 128445514 is 415544821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 128445514.

It is not an unprimeable number, because it can be changed into a prime (128445511) 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, 252592 + ... + 253099.

It is an arithmetic number, because the mean of its divisors is an integer number (24273216).

Almost surely, 2^128445514 is an apocalyptic number.

128445514 is a deficient number, since it is larger than the sum of its proper divisors (65740214).

128445514 is a wasteful number, since it uses less digits than its factorization.

128445514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505820.

The product of its digits is 25600, while the sum is 34.

The square root of 128445514 is about 11333.3805195096. The cubic root of 128445514 is about 504.5524433875.

The spelling of 128445514 in words is "one hundred twenty-eight million, four hundred forty-five thousand, five hundred fourteen".