126407 has 4 divisors (see below), whose sum is σ = 133080. Its totient is φ = 119736.
The previous prime is 126397. The next prime is 126421. The reversal of 126407 is 704621.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 704621 = 149 ⋅4729.
It is a cyclic number.
It is not a de Polignac number, because 126407 - 28 = 126151 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 126407.
It is not an unprimeable number, because it can be changed into a prime (126457) 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, 3308 + ... + 3345.
It is an arithmetic number, because the mean of its divisors is an integer number (33270).
2126407 is an apocalyptic number.
126407 is a deficient number, since it is larger than the sum of its proper divisors (6673).
126407 is an equidigital number, since it uses as much as digits as its factorization.
126407 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6672.
The product of its (nonzero) digits is 336, while the sum is 20.
The square root of 126407 is about 355.5376210755. The cubic root of 126407 is about 50.1869004936.
The spelling of 126407 in words is "one hundred twenty-six thousand, four hundred seven".
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