126672271 has 16 divisors (see below), whose sum is σ = 140341248. Its totient is φ = 113377600.

The previous prime is 126672263. The next prime is 126672289. The reversal of 126672271 is 172276621.

It is a cyclic number.

It is not a de Polignac number, because 126672271 - 2³ = 126672263 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 (126672211) 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 15 ways as a sum of consecutive naturals, for example, 330546 + ... + 330928.

It is an arithmetic number, because the mean of its divisors is an integer number (8771328).

Almost surely, 2^126672271 is an apocalyptic number.

126672271 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

126672271 is a deficient number, since it is larger than the sum of its proper divisors (13668977).

126672271 is a wasteful number, since it uses less digits than its factorization.

126672271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782.

The product of its digits is 14112, while the sum is 34.

The square root of 126672271 is about 11254.8776537109. The cubic root of 126672271 is about 502.2198248374.

It can be divided in two parts, 1266 and 72271, that added together give a palindrome (73537).

The spelling of 126672271 in words is "one hundred twenty-six million, six hundred seventy-two thousand, two hundred seventy-one".