127606613 has 2 divisors, whose sum is σ = 127606614. Its totient is φ = 127606612.

The previous prime is 127606543. The next prime is 127606649. The reversal of 127606613 is 316606721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119727364 + 7879249 = 10942^2 + 2807^2 .

It is a cyclic number.

It is not a de Polignac number, because 127606613 - 2²² = 123412309 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 127606613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127606813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63803306 + 63803307.

It is an arithmetic number, because the mean of its divisors is an integer number (63803307).

Almost surely, 2^127606613 is an apocalyptic number.

It is an amenable number.

127606613 is a deficient number, since it is larger than the sum of its proper divisors (1).

127606613 is an equidigital number, since it uses as much as digits as its factorization.

127606613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 127606613 is about 11296.3097071566. The cubic root of 127606613 is about 503.4516020586.

The spelling of 127606613 in words is "one hundred twenty-seven million, six hundred six thousand, six hundred thirteen".