127127201 has 2 divisors, whose sum is σ = 127127202. Its totient is φ = 127127200.

The previous prime is 127127191. The next prime is 127127219. The reversal of 127127201 is 102721721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70576801 + 56550400 = 8401^2 + 7520^2 .

It is an emirp because it is prime and its reverse (102721721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 127127201 - 2⁶ = 127127137 is a prime.

It is a super-2 number, since 2×127127201² = 32322650468188802, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (127127251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63563600 + 63563601.

It is an arithmetic number, because the mean of its divisors is an integer number (63563601).

Almost surely, 2^127127201 is an apocalyptic number.

It is an amenable number.

127127201 is a deficient number, since it is larger than the sum of its proper divisors (1).

127127201 is an equidigital number, since it uses as much as digits as its factorization.

127127201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 127127201 is about 11275.0698889186. The cubic root of 127127201 is about 502.8203295707.

Adding to 127127201 its reverse (102721721), we get a palindrome (229848922).

The spelling of 127127201 in words is "one hundred twenty-seven million, one hundred twenty-seven thousand, two hundred one".