127432225 has 6 divisors (see below), whose sum is σ = 158015990. Its totient is φ = 101945760.

The previous prime is 127432219. The next prime is 127432241. The reversal of 127432225 is 522234721.

It can be written as a sum of positive squares in 3 ways, for example, as 11826721 + 115605504 = 3439^2 + 10752^2 .

It is a de Polignac number, because none of the positive numbers 2^k-127432225 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 127432193 and 127432202.

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 5 ways as a sum of consecutive naturals, for example, 2548620 + ... + 2548669.

Almost surely, 2^127432225 is an apocalyptic number.

It is an amenable number.

127432225 is a deficient number, since it is larger than the sum of its proper divisors (30583765).

127432225 is an equidigital number, since it uses as much as digits as its factorization.

127432225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5097299 (or 5097294 counting only the distinct ones).

The product of its digits is 6720, while the sum is 28.

The square root of 127432225 is about 11288.5882642605. The cubic root of 127432225 is about 503.2221574647. Note that the first 3 decimals are identical.

Adding to 127432225 its reverse (522234721), we get a palindrome (649666946).

The spelling of 127432225 in words is "one hundred twenty-seven million, four hundred thirty-two thousand, two hundred twenty-five".