127530275173 has 6 divisors (see below), whose sum is σ = 148351544646. Its totient is φ = 109311664392.

The previous prime is 127530275153. The next prime is 127530275237. The reversal of 127530275173 is 371572035721.

It can be written as a sum of positive squares in only one way, i.e., 112642126884 + 14888148289 = 335622^2 + 122017^2 .

It is not a de Polignac number, because 127530275173 - 2²¹ = 127528178021 is a prime.

It is a super-2 number, since 2×127530275173² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127530275153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1301329290 + ... + 1301329387.

It is an arithmetic number, because the mean of its divisors is an integer number (24725257441).

Almost surely, 2^127530275173 is an apocalyptic number.

It is an amenable number.

127530275173 is a deficient number, since it is larger than the sum of its proper divisors (20821269473).

127530275173 is an equidigital number, since it uses as much as digits as its factorization.

127530275173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2602658691 (or 2602658684 counting only the distinct ones).

The product of its (nonzero) digits is 308700, while the sum is 43.

The spelling of 127530275173 in words is "one hundred twenty-seven billion, five hundred thirty million, two hundred seventy-five thousand, one hundred seventy-three".