127665325 has 24 divisors (see below), whose sum is σ = 168370920. Its totient is φ = 95692800.

The previous prime is 127665311. The next prime is 127665331. The reversal of 127665325 is 523566721.

It can be written as a sum of positive squares in 12 ways, for example, as 12124324 + 115541001 = 3482^2 + 10749^2 .

It is not a de Polignac number, because 127665325 - 2⁹ = 127664813 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118891 + ... + 119959.

It is an arithmetic number, because the mean of its divisors is an integer number (7015455).

Almost surely, 2^127665325 is an apocalyptic number.

It is an amenable number.

127665325 is a deficient number, since it is larger than the sum of its proper divisors (40705595).

127665325 is a wasteful number, since it uses less digits than its factorization.

127665325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377 (or 1372 counting only the distinct ones).

The product of its digits is 75600, while the sum is 37.

The square root of 127665325 is about 11298.9081330897. The cubic root of 127665325 is about 503.5288031733.

The spelling of 127665325 in words is "one hundred twenty-seven million, six hundred sixty-five thousand, three hundred twenty-five".