127481489 has 2 divisors, whose sum is σ = 127481490. Its totient is φ = 127481488.

The previous prime is 127481461. The next prime is 127481513. The reversal of 127481489 is 984184721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126787600 + 693889 = 11260^2 + 833^2 .

It is a cyclic number.

It is not a de Polignac number, because 127481489 - 2²⁴ = 110704273 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (127481689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63740744 + 63740745.

It is an arithmetic number, because the mean of its divisors is an integer number (63740745).

Almost surely, 2^127481489 is an apocalyptic number.

It is an amenable number.

127481489 is a deficient number, since it is larger than the sum of its proper divisors (1).

127481489 is an equidigital number, since it uses as much as digits as its factorization.

127481489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 44.

The square root of 127481489 is about 11290.7700800255. The cubic root of 127481489 is about 503.2869959633.

The spelling of 127481489 in words is "one hundred twenty-seven million, four hundred eighty-one thousand, four hundred eighty-nine".