127133977 has 2 divisors, whose sum is σ = 127133978. Its totient is φ = 127133976.

The previous prime is 127133947. The next prime is 127133983. The reversal of 127133977 is 779331721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79192201 + 47941776 = 8899^2 + 6924^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127133977 is a prime.

It is not a weakly prime, because it can be changed into another prime (127133917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63566988 + 63566989.

It is an arithmetic number, because the mean of its divisors is an integer number (63566989).

Almost surely, 2^127133977 is an apocalyptic number.

It is an amenable number.

127133977 is a deficient number, since it is larger than the sum of its proper divisors (1).

127133977 is an equidigital number, since it uses as much as digits as its factorization.

127133977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55566, while the sum is 40.

The square root of 127133977 is about 11275.3703708570. The cubic root of 127133977 is about 502.8292630116.

The spelling of 127133977 in words is "one hundred twenty-seven million, one hundred thirty-three thousand, nine hundred seventy-seven".