127641516 has 12 divisors (see below), whose sum is σ = 297830232. Its totient is φ = 42547168.

The previous prime is 127641511. The next prime is 127641517. The reversal of 127641516 is 615146721.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (127641511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5318385 + ... + 5318408.

It is an arithmetic number, because the mean of its divisors is an integer number (24819186).

Almost surely, 2^127641516 is an apocalyptic number.

It is an amenable number.

127641516 is an abundant number, since it is smaller than the sum of its proper divisors (170188716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

127641516 is a wasteful number, since it uses less digits than its factorization.

127641516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10636800 (or 10636798 counting only the distinct ones).

The product of its digits is 10080, while the sum is 33.

The square root of 127641516 is about 11297.8544865828. The cubic root of 127641516 is about 503.4974992866.

The spelling of 127641516 in words is "one hundred twenty-seven million, six hundred forty-one thousand, five hundred sixteen".