127243201 has 2 divisors, whose sum is σ = 127243202. Its totient is φ = 127243200.

The previous prime is 127243159. The next prime is 127243217. The reversal of 127243201 is 102342721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115347600 + 11895601 = 10740^2 + 3449^2 .

It is a cyclic number.

It is not a de Polignac number, because 127243201 - 2¹⁷ = 127112129 is a prime.

It is not a weakly prime, because it can be changed into another prime (127243231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63621600 + 63621601.

It is an arithmetic number, because the mean of its divisors is an integer number (63621601).

Almost surely, 2^127243201 is an apocalyptic number.

It is an amenable number.

127243201 is a deficient number, since it is larger than the sum of its proper divisors (1).

127243201 is an equidigital number, since it uses as much as digits as its factorization.

127243201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 127243201 is about 11280.2128082763. The cubic root of 127243201 is about 502.9732195532.

Adding to 127243201 its reverse (102342721), we get a palindrome (229585922).

The spelling of 127243201 in words is "one hundred twenty-seven million, two hundred forty-three thousand, two hundred one".