128327194 has 4 divisors (see below), whose sum is σ = 192490794. Its totient is φ = 64163596.

The previous prime is 128327191. The next prime is 128327219. The reversal of 128327194 is 491723821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 491723821 = 37 ⋅13289833.

It can be written as a sum of positive squares in only one way, i.e., 122921569 + 5405625 = 11087^2 + 2325^2 .

It is not an unprimeable number, because it can be changed into a prime (128327191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32081797 + ... + 32081800.

Almost surely, 2^128327194 is an apocalyptic number.

128327194 is a deficient number, since it is larger than the sum of its proper divisors (64163600).

128327194 is an equidigital number, since it uses as much as digits as its factorization.

128327194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64163599.

The product of its digits is 24192, while the sum is 37.

The square root of 128327194 is about 11328.1593385686. The cubic root of 128327194 is about 504.3974698025.

The spelling of 128327194 in words is "one hundred twenty-eight million, three hundred twenty-seven thousand, one hundred ninety-four".