127527649 has 2 divisors, whose sum is σ = 127527650. Its totient is φ = 127527648.

The previous prime is 127527623. The next prime is 127527661. The reversal of 127527649 is 946725721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99860049 + 27667600 = 9993^2 + 5260^2 .

It is a cyclic number.

It is not a de Polignac number, because 127527649 - 2⁹ = 127527137 is a prime.

It is not a weakly prime, because it can be changed into another prime (127527689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63763824 + 63763825.

It is an arithmetic number, because the mean of its divisors is an integer number (63763825).

Almost surely, 2^127527649 is an apocalyptic number.

It is an amenable number.

127527649 is a deficient number, since it is larger than the sum of its proper divisors (1).

127527649 is an equidigital number, since it uses as much as digits as its factorization.

127527649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 43.

The square root of 127527649 is about 11292.8140425671. The cubic root of 127527649 is about 503.3477339953.

The spelling of 127527649 in words is "one hundred twenty-seven million, five hundred twenty-seven thousand, six hundred forty-nine".