127761064 has 8 divisors (see below), whose sum is σ = 239552010. Its totient is φ = 63880528.

The previous prime is 127761047. The next prime is 127761107. The reversal of 127761064 is 460167721.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 97180164 + 30580900 = 9858^2 + 5530^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7985059 + ... + 7985074.

Almost surely, 2^127761064 is an apocalyptic number.

It is an amenable number.

127761064 is a deficient number, since it is larger than the sum of its proper divisors (111790946).

127761064 is a wasteful number, since it uses less digits than its factorization.

127761064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15970139 (or 15970135 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 127761064 is about 11303.1439874046. The cubic root of 127761064 is about 503.6546407844.

The spelling of 127761064 in words is "one hundred twenty-seven million, seven hundred sixty-one thousand, sixty-four".