127849481 has 2 divisors, whose sum is σ = 127849482. Its totient is φ = 127849480.

The previous prime is 127849459. The next prime is 127849517. The reversal of 127849481 is 184948721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109914256 + 17935225 = 10484^2 + 4235^2 .

It is an emirp because it is prime and its reverse (184948721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 127849481 - 2⁶ = 127849417 is a prime.

It is a super-2 number, since 2×127849481² = 32690979583938722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (127849441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63924740 + 63924741.

It is an arithmetic number, because the mean of its divisors is an integer number (63924741).

Almost surely, 2^127849481 is an apocalyptic number.

It is an amenable number.

127849481 is a deficient number, since it is larger than the sum of its proper divisors (1).

127849481 is an equidigital number, since it uses as much as digits as its factorization.

127849481 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 127849481 is about 11307.0544793947. The cubic root of 127849481 is about 503.7707986659.

The spelling of 127849481 in words is "one hundred twenty-seven million, eight hundred forty-nine thousand, four hundred eighty-one".