127725133 has 2 divisors, whose sum is σ = 127725134. Its totient is φ = 127725132.

The previous prime is 127725089. The next prime is 127725167. The reversal of 127725133 is 331527721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87946884 + 39778249 = 9378^2 + 6307^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127725133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 127725095 and 127725104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127725173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63862566 + 63862567.

It is an arithmetic number, because the mean of its divisors is an integer number (63862567).

Almost surely, 2^127725133 is an apocalyptic number.

It is an amenable number.

127725133 is a deficient number, since it is larger than the sum of its proper divisors (1).

127725133 is an equidigital number, since it uses as much as digits as its factorization.

127725133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8820, while the sum is 31.

The square root of 127725133 is about 11301.5544506055. The cubic root of 127725133 is about 503.6074210992.

The spelling of 127725133 in words is "one hundred twenty-seven million, seven hundred twenty-five thousand, one hundred thirty-three".