127520445081 has 8 divisors (see below), whose sum is σ = 170302833504. Its totient is φ = 84875843360.

The previous prime is 127520445077. The next prime is 127520445191. The reversal of 127520445081 is 180544025721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 127520445081 - 2² = 127520445077 is a prime.

It is a super-2 number, since 2×127520445081² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (127520445001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34444515 + ... + 34448216.

It is an arithmetic number, because the mean of its divisors is an integer number (21287854188).

Almost surely, 2^127520445081 is an apocalyptic number.

It is an amenable number.

127520445081 is a deficient number, since it is larger than the sum of its proper divisors (42782388423).

127520445081 is an equidigital number, since it uses as much as digits as its factorization.

127520445081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68893351.

The product of its (nonzero) digits is 89600, while the sum is 39.

The spelling of 127520445081 in words is "one hundred twenty-seven billion, five hundred twenty million, four hundred forty-five thousand, eighty-one".