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127007213 is a prime number
BaseRepresentation
bin1111001000111…
…11100111101101
322211222122010212
413210133213231
5230003212323
620334112205
73101354264
oct744374755
9284878125
10127007213
1165768443
123664b665
132040b4c8
1412c215db
15b23bb78
hex791f9ed

127007213 has 2 divisors, whose sum is σ = 127007214. Its totient is φ = 127007212.

The previous prime is 127007201. The next prime is 127007227. The reversal of 127007213 is 312700721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96393124 + 30614089 = 9818^2 + 5533^2 .

It is a cyclic number.

It is not a de Polignac number, because 127007213 - 222 = 122812909 is a prime.

It is a super-2 number, since 2×1270072132 = 32261664308054738, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127001213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63503606 + 63503607.

It is an arithmetic number, because the mean of its divisors is an integer number (63503607).

Almost surely, 2127007213 is an apocalyptic number.

It is an amenable number.

127007213 is a deficient number, since it is larger than the sum of its proper divisors (1).

127007213 is an equidigital number, since it uses as much as digits as its factorization.

127007213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 127007213 is about 11269.7476901659. The cubic root of 127007213 is about 502.6620854483.

Adding to 127007213 its reverse (312700721), we get a palindrome (439707934).

The spelling of 127007213 in words is "one hundred twenty-seven million, seven thousand, two hundred thirteen".