127521448 has 8 divisors (see below), whose sum is σ = 239102730. Its totient is φ = 63760720.

The previous prime is 127521421. The next prime is 127521451. The reversal of 127521448 is 844125721.

It can be written as a sum of positive squares in only one way, i.e., 67272804 + 60248644 = 8202^2 + 7762^2 .

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, 7970083 + ... + 7970098.

Almost surely, 2^127521448 is an apocalyptic number.

It is an amenable number.

127521448 is a deficient number, since it is larger than the sum of its proper divisors (111581282).

127521448 is a wasteful number, since it uses less digits than its factorization.

127521448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15940187 (or 15940183 counting only the distinct ones).

The product of its digits is 17920, while the sum is 34.

The square root of 127521448 is about 11292.5394841019. The cubic root of 127521448 is about 503.3395754773.

The spelling of 127521448 in words is "one hundred twenty-seven million, five hundred twenty-one thousand, four hundred forty-eight".