127705765 has 8 divisors (see below), whose sum is σ = 167178528. Its totient is φ = 92876880.

The previous prime is 127705741. The next prime is 127705777. The reversal of 127705765 is 567507721.

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

It is not a de Polignac number, because 127705765 - 2¹⁷ = 127574693 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1160907 + ... + 1161016.

It is an arithmetic number, because the mean of its divisors is an integer number (20897316).

Almost surely, 2^127705765 is an apocalyptic number.

It is an amenable number.

127705765 is a deficient number, since it is larger than the sum of its proper divisors (39472763).

127705765 is a wasteful number, since it uses less digits than its factorization.

127705765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2321939.

The product of its (nonzero) digits is 102900, while the sum is 40.

The square root of 127705765 is about 11300.6975448421. The cubic root of 127705765 is about 503.5819644503.

The spelling of 127705765 in words is "one hundred twenty-seven million, seven hundred five thousand, seven hundred sixty-five".