127655641 has 8 divisors (see below), whose sum is σ = 131021064. Its totient is φ = 124325760.

The previous prime is 127655629. The next prime is 127655659. The reversal of 127655641 is 146556721.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 21483225 + 106172416 = 4635^2 + 10304^2 .

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 127655641 - 2⁵ = 127655609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 127655641.

It is not an unprimeable number, because it can be changed into a prime (127655621) 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 7 ways as a sum of consecutive naturals, for example, 1530 + ... + 16051.

It is an arithmetic number, because the mean of its divisors is an integer number (16377633).

Almost surely, 2^127655641 is an apocalyptic number.

It is an amenable number.

127655641 is a deficient number, since it is larger than the sum of its proper divisors (3365423).

127655641 is a wasteful number, since it uses less digits than its factorization.

127655641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17771.

The product of its digits is 50400, while the sum is 37.

The square root of 127655641 is about 11298.4795879800. The cubic root of 127655641 is about 503.5160711956.

The spelling of 127655641 in words is "one hundred twenty-seven million, six hundred fifty-five thousand, six hundred forty-one".