127561868 has 24 divisors (see below), whose sum is σ = 256080384. Its totient is φ = 54464400.

The previous prime is 127561859. The next prime is 127561871. The reversal of 127561868 is 868165721.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 818 + ... + 15993.

It is an arithmetic number, because the mean of its divisors is an integer number (10670016).

Almost surely, 2^127561868 is an apocalyptic number.

It is an amenable number.

127561868 is an abundant number, since it is smaller than the sum of its proper divisors (128518516).

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

127561868 is a wasteful number, since it uses less digits than its factorization.

127561868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17093 (or 17091 counting only the distinct ones).

The product of its digits is 161280, while the sum is 44.

The square root of 127561868 is about 11294.3290194681. The cubic root of 127561868 is about 503.3927504184.

The spelling of 127561868 in words is "one hundred twenty-seven million, five hundred sixty-one thousand, eight hundred sixty-eight".