126417271 has 4 divisors (see below), whose sum is σ = 129833992. Its totient is φ = 123000552.

The previous prime is 126417211. The next prime is 126417283. The reversal of 126417271 is 172714621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126417271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126417211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1708305 + ... + 1708378.

It is an arithmetic number, because the mean of its divisors is an integer number (32458498).

Almost surely, 2^126417271 is an apocalyptic number.

126417271 is a deficient number, since it is larger than the sum of its proper divisors (3416721).

126417271 is an equidigital number, since it uses as much as digits as its factorization.

126417271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3416720.

The product of its digits is 4704, while the sum is 31.

The square root of 126417271 is about 11243.5435250636. The cubic root of 126417271 is about 501.8825974242.

The spelling of 126417271 in words is "one hundred twenty-six million, four hundred seventeen thousand, two hundred seventy-one".