127123201 has 2 divisors, whose sum is σ = 127123202. Its totient is φ = 127123200.

The previous prime is 127123193. The next prime is 127123237. The reversal of 127123201 is 102321721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107329600 + 19793601 = 10360^2 + 4449^2 .

It is a cyclic number.

It is not a de Polignac number, because 127123201 - 2³ = 127123193 is a prime.

It is not a weakly prime, because it can be changed into another prime (127123261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63561600 + 63561601.

It is an arithmetic number, because the mean of its divisors is an integer number (63561601).

Almost surely, 2^127123201 is an apocalyptic number.

It is an amenable number.

127123201 is a deficient number, since it is larger than the sum of its proper divisors (1).

127123201 is an equidigital number, since it uses as much as digits as its factorization.

127123201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 127123201 is about 11274.8925050308. The cubic root of 127123201 is about 502.8150558438.

Adding to 127123201 its reverse (102321721), we get a palindrome (229444922).

The spelling of 127123201 in words is "one hundred twenty-seven million, one hundred twenty-three thousand, two hundred one".