127281225 has 12 divisors (see below), whose sum is σ = 210438416. Its totient is φ = 67883280.

The previous prime is 127281211. The next prime is 127281229. The reversal of 127281225 is 522182721.

It is not a de Polignac number, because 127281225 - 2⁸ = 127280969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 127281192 and 127281201.

It is not an unprimeable number, because it can be changed into a prime (127281229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 848467 + ... + 848616.

Almost surely, 2^127281225 is an apocalyptic number.

127281225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

127281225 is a deficient number, since it is larger than the sum of its proper divisors (83157191).

127281225 is a wasteful number, since it uses less digits than its factorization.

127281225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697096 (or 1697091 counting only the distinct ones).

The product of its digits is 4480, while the sum is 30.

The square root of 127281225 is about 11281.8981115768. The cubic root of 127281225 is about 503.0233156128.

The spelling of 127281225 in words is "one hundred twenty-seven million, two hundred eighty-one thousand, two hundred twenty-five".