127005947 has 2 divisors, whose sum is σ = 127005948. Its totient is φ = 127005946.

The previous prime is 127005913. The next prime is 127005953. The reversal of 127005947 is 749500721.

It is a strong prime.

It is an emirp because it is prime and its reverse (749500721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 127005947 - 2¹² = 127001851 is a prime.

It is a super-2 number, since 2×127005947² = 32261021146733618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (127005547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63502973 + 63502974.

It is an arithmetic number, because the mean of its divisors is an integer number (63502974).

Almost surely, 2^127005947 is an apocalyptic number.

127005947 is a deficient number, since it is larger than the sum of its proper divisors (1).

127005947 is an equidigital number, since it uses as much as digits as its factorization.

127005947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 127005947 is about 11269.6915219539. The cubic root of 127005947 is about 502.6604152746.

The spelling of 127005947 in words is "one hundred twenty-seven million, five thousand, nine hundred forty-seven".