127140667 has 2 divisors, whose sum is σ = 127140668. Its totient is φ = 127140666.

The previous prime is 127140661. The next prime is 127140677. The reversal of 127140667 is 766041721.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127140667 is a prime.

It is not a weakly prime, because it can be changed into another prime (127140661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63570333 + 63570334.

It is an arithmetic number, because the mean of its divisors is an integer number (63570334).

Almost surely, 2^127140667 is an apocalyptic number.

127140667 is a deficient number, since it is larger than the sum of its proper divisors (1).

127140667 is an equidigital number, since it uses as much as digits as its factorization.

127140667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 127140667 is about 11275.6670312669. The cubic root of 127140667 is about 502.8380827592.

The spelling of 127140667 in words is "one hundred twenty-seven million, one hundred forty thousand, six hundred sixty-seven".