127561012 has 12 divisors (see below), whose sum is σ = 223459236. Its totient is φ = 63715520.

The previous prime is 127560977. The next prime is 127561033. The reversal of 127561012 is 210165721.

It can be written as a sum of positive squares in 2 ways, for example, as 2702736 + 124858276 = 1644^2 + 11174^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11689 + ... + 19792.

It is an arithmetic number, because the mean of its divisors is an integer number (18621603).

Almost surely, 2^127561012 is an apocalyptic number.

It is an amenable number.

127561012 is a deficient number, since it is larger than the sum of its proper divisors (95898224).

127561012 is a wasteful number, since it uses less digits than its factorization.

127561012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32498 (or 32496 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 127561012 is about 11294.2911242804. The cubic root of 127561012 is about 503.3916244153.

The spelling of 127561012 in words is "one hundred twenty-seven million, five hundred sixty-one thousand, twelve".