127144405525 has 12 divisors (see below), whose sum is σ = 159879615264. Its totient is φ = 100282910000.

The previous prime is 127144405483. The next prime is 127144405529. The reversal of 127144405525 is 525504441721.

It is not a de Polignac number, because 127144405525 - 2¹³ = 127144397333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127144405529) 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 11 ways as a sum of consecutive naturals, for example, 35813551 + ... + 35817100.

It is an arithmetic number, because the mean of its divisors is an integer number (13323301272).

Almost surely, 2^127144405525 is an apocalyptic number.

It is an amenable number.

127144405525 is a deficient number, since it is larger than the sum of its proper divisors (32735209739).

127144405525 is an equidigital number, since it uses as much as digits as its factorization.

127144405525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71630732 (or 71630727 counting only the distinct ones).

The product of its (nonzero) digits is 224000, while the sum is 40.

The spelling of 127144405525 in words is "one hundred twenty-seven billion, one hundred forty-four million, four hundred five thousand, five hundred twenty-five".