127247213 has 2 divisors, whose sum is σ = 127247214. Its totient is φ = 127247212.

The previous prime is 127247143. The next prime is 127247221. The reversal of 127247213 is 312742721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65577604 + 61669609 = 8098^2 + 7853^2 .

It is a cyclic number.

It is not a de Polignac number, because 127247213 - 2²⁰ = 126198637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127247233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63623606 + 63623607.

It is an arithmetic number, because the mean of its divisors is an integer number (63623607).

Almost surely, 2^127247213 is an apocalyptic number.

It is an amenable number.

127247213 is a deficient number, since it is larger than the sum of its proper divisors (1).

127247213 is an equidigital number, since it uses as much as digits as its factorization.

127247213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4704, while the sum is 29.

The square root of 127247213 is about 11280.3906403989. The cubic root of 127247213 is about 502.9785057750.

Adding to 127247213 its reverse (312742721), we get a palindrome (439989934).

The spelling of 127247213 in words is "one hundred twenty-seven million, two hundred forty-seven thousand, two hundred thirteen".