128314 has 4 divisors (see below), whose sum is σ = 192474. Its totient is φ = 64156.
The previous prime is 128311. The next prime is 128321. The reversal of 128314 is 413821.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 413821 = 227 ⋅1823.
It can be written as a sum of positive squares in only one way, i.e., 81225 + 47089 = 285^2 + 217^2 .
It is a junction number, because it is equal to n+sod(n) for n = 128291 and 128300.
It is not an unprimeable number, because it can be changed into a prime (128311) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32077 + ... + 32080.
2128314 is an apocalyptic number.
128314 is a deficient number, since it is larger than the sum of its proper divisors (64160).
128314 is an equidigital number, since it uses as much as digits as its factorization.
128314 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 64159.
The product of its digits is 192, while the sum is 19.
The square root of 128314 is about 358.2094359450. The cubic root of 128314 is about 50.4380182616.
The spelling of 128314 in words is "one hundred twenty-eight thousand, three hundred fourteen".
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