126265 has 4 divisors (see below), whose sum is σ = 151524. Its totient is φ = 101008.
The previous prime is 126257. The next prime is 126271. The reversal of 126265 is 562621.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 89401 + 36864 = 299^2 + 192^2 .
It is a cyclic number.
It is not a de Polignac number, because 126265 - 23 = 126257 is a prime.
It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Duffinian number.
126265 is a lucky number.
It is an unprimeable number.
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 in 3 ways as a sum of consecutive naturals, for example, 12622 + ... + 12631.
It is an arithmetic number, because the mean of its divisors is an integer number (37881).
2126265 is an apocalyptic number.
It is an amenable number.
126265 is a deficient number, since it is larger than the sum of its proper divisors (25259).
126265 is an equidigital number, since it uses as much as digits as its factorization.
126265 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25258.
The product of its digits is 720, while the sum is 22.
The square root of 126265 is about 355.3378673882. The cubic root of 126265 is about 50.1681008752.
Adding to 126265 its reverse (562621), we get a palindrome (688886).
The spelling of 126265 in words is "one hundred twenty-six thousand, two hundred sixty-five".
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