127012913 has 2 divisors, whose sum is σ = 127012914. Its totient is φ = 127012912.

The previous prime is 127012909. The next prime is 127012937. The reversal of 127012913 is 319210721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73839649 + 53173264 = 8593^2 + 7292^2 .

It is a cyclic number.

It is not a de Polignac number, because 127012913 - 2² = 127012909 is a prime.

It is a super-2 number, since 2×127012913² = 32264560137491138, which contains 22 as substring.

It is a Chen prime.

It is equal to p_7218143 and since 127012913 and 7218143 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (127012903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63506456 + 63506457.

It is an arithmetic number, because the mean of its divisors is an integer number (63506457).

Almost surely, 2^127012913 is an apocalyptic number.

It is an amenable number.

127012913 is a deficient number, since it is larger than the sum of its proper divisors (1).

127012913 is an equidigital number, since it uses as much as digits as its factorization.

127012913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 127012913 is about 11270.0005767524. Note that the first 3 decimals coincide. The cubic root of 127012913 is about 502.6696050501.

The spelling of 127012913 in words is "one hundred twenty-seven million, twelve thousand, nine hundred thirteen".