127447049 has 2 divisors, whose sum is σ = 127447050. Its totient is φ = 127447048.

The previous prime is 127447037. The next prime is 127447091. The reversal of 127447049 is 940744721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65934400 + 61512649 = 8120^2 + 7843^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127447049 is a prime.

It is not a weakly prime, because it can be changed into another prime (127447009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63723524 + 63723525.

It is an arithmetic number, because the mean of its divisors is an integer number (63723525).

Almost surely, 2^127447049 is an apocalyptic number.

It is an amenable number.

127447049 is a deficient number, since it is larger than the sum of its proper divisors (1).

127447049 is an equidigital number, since it uses as much as digits as its factorization.

127447049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 127447049 is about 11289.2448374548. The cubic root of 127447049 is about 503.2416697349.

The spelling of 127447049 in words is "one hundred twenty-seven million, four hundred forty-seven thousand, forty-nine".