127666131 has 8 divisors (see below), whose sum is σ = 171874560. Its totient is φ = 84284232.

The previous prime is 127666129. The next prime is 127666151. The reversal of 127666131 is 131666721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 127666131 - 2¹ = 127666129 is a prime.

It is a super-2 number, since 2×127666131² = 32597282009018322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 127666092 and 127666101.

It is not an unprimeable number, because it can be changed into a prime (127666151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206271 + ... + 206888.

It is an arithmetic number, because the mean of its divisors is an integer number (21484320).

Almost surely, 2^127666131 is an apocalyptic number.

127666131 is a deficient number, since it is larger than the sum of its proper divisors (44208429).

127666131 is a wasteful number, since it uses less digits than its factorization.

127666131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413265.

The product of its digits is 9072, while the sum is 33.

The square root of 127666131 is about 11298.9438001965. The cubic root of 127666131 is about 503.5298628277.

The spelling of 127666131 in words is "one hundred twenty-seven million, six hundred sixty-six thousand, one hundred thirty-one".