127054721 has 2 divisors, whose sum is σ = 127054722. Its totient is φ = 127054720.

The previous prime is 127054703. The next prime is 127054747. The reversal of 127054721 is 127450721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126315121 + 739600 = 11239^2 + 860^2 .

It is a cyclic number.

It is not a de Polignac number, because 127054721 - 2¹⁴ = 127038337 is a prime.

It is a super-2 number, since 2×127054721² = 32285804256775682, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (127054321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63527360 + 63527361.

It is an arithmetic number, because the mean of its divisors is an integer number (63527361).

Almost surely, 2^127054721 is an apocalyptic number.

It is an amenable number.

127054721 is a deficient number, since it is larger than the sum of its proper divisors (1).

127054721 is an equidigital number, since it uses as much as digits as its factorization.

127054721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 127054721 is about 11271.8552598940. The cubic root of 127054721 is about 502.7247524755.

The spelling of 127054721 in words is "one hundred twenty-seven million, fifty-four thousand, seven hundred twenty-one".