127666151 has 2 divisors, whose sum is σ = 127666152. Its totient is φ = 127666150.

The previous prime is 127666129. The next prime is 127666159. The reversal of 127666151 is 151666721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 127666151 - 2¹⁸ = 127404007 is a prime.

It is a super-2 number, since 2×127666151² = 32597292222309602, which contains 22 as substring.

It is a Sophie Germain prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127666159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63833075 + 63833076.

It is an arithmetic number, because the mean of its divisors is an integer number (63833076).

Almost surely, 2^127666151 is an apocalyptic number.

127666151 is a deficient number, since it is larger than the sum of its proper divisors (1).

127666151 is an equidigital number, since it uses as much as digits as its factorization.

127666151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 35.

The square root of 127666151 is about 11298.9446852350. The cubic root of 127666151 is about 503.5298891218.

The spelling of 127666151 in words is "one hundred twenty-seven million, six hundred sixty-six thousand, one hundred fifty-one".