127556461 has 2 divisors, whose sum is σ = 127556462. Its totient is φ = 127556460.

The previous prime is 127556441. The next prime is 127556483. The reversal of 127556461 is 164655721.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127554436 + 2025 = 11294^2 + 45^2 .

It is an emirp because it is prime and its reverse (164655721) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127556461 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 127556461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127556431) 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, 63778230 + 63778231.

It is an arithmetic number, because the mean of its divisors is an integer number (63778231).

Almost surely, 2^127556461 is an apocalyptic number.

It is an amenable number.

127556461 is a deficient number, since it is larger than the sum of its proper divisors (1).

127556461 is an equidigital number, since it uses as much as digits as its factorization.

127556461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 37.

The square root of 127556461 is about 11294.0896490155. The cubic root of 127556461 is about 503.3856378355.

The spelling of 127556461 in words is "one hundred twenty-seven million, five hundred fifty-six thousand, four hundred sixty-one".