127905745 has 8 divisors (see below), whose sum is σ = 167440320. Its totient is φ = 93022320.

The previous prime is 127905733. The next prime is 127905751. The reversal of 127905745 is 547509721.

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

It is not a de Polignac number, because 127905745 - 2⁹ = 127905233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 127905698 and 127905707.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1162725 + ... + 1162834.

It is an arithmetic number, because the mean of its divisors is an integer number (20930040).

Almost surely, 2^127905745 is an apocalyptic number.

It is an amenable number.

127905745 is a deficient number, since it is larger than the sum of its proper divisors (39534575).

127905745 is a wasteful number, since it uses less digits than its factorization.

127905745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2325575.

The product of its (nonzero) digits is 88200, while the sum is 40.

The square root of 127905745 is about 11309.5422100101. The cubic root of 127905745 is about 503.8446876462.

The spelling of 127905745 in words is "one hundred twenty-seven million, nine hundred five thousand, seven hundred forty-five".