127752617 has 2 divisors, whose sum is σ = 127752618. Its totient is φ = 127752616.

The previous prime is 127752607. The next prime is 127752619. The reversal of 127752617 is 716257721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105247081 + 22505536 = 10259^2 + 4744^2 .

It is an emirp because it is prime and its reverse (716257721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 127752617 - 2⁶ = 127752553 is a prime.

Together with 127752619, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (127752619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63876308 + 63876309.

It is an arithmetic number, because the mean of its divisors is an integer number (63876309).

Almost surely, 2^127752617 is an apocalyptic number.

It is an amenable number.

127752617 is a deficient number, since it is larger than the sum of its proper divisors (1).

127752617 is an equidigital number, since it uses as much as digits as its factorization.

127752617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41160, while the sum is 38.

The square root of 127752617 is about 11302.7703241285. The cubic root of 127752617 is about 503.6435407293.

The spelling of 127752617 in words is "one hundred twenty-seven million, seven hundred fifty-two thousand, six hundred seventeen".