127712272 has 10 divisors (see below), whose sum is σ = 247442558. Its totient is φ = 63856128.

The previous prime is 127712267. The next prime is 127712287. The reversal of 127712272 is 272217721.

It can be written as a sum of positive squares in only one way, i.e., 124010496 + 3701776 = 11136^2 + 1924^2 .

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 as a sum of consecutive naturals, namely, 3990993 + ... + 3991024.

Almost surely, 2^127712272 is an apocalyptic number.

It is an amenable number.

127712272 is a deficient number, since it is larger than the sum of its proper divisors (119730286).

127712272 is an equidigital number, since it uses as much as digits as its factorization.

127712272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7982025 (or 7982019 counting only the distinct ones).

The product of its digits is 5488, while the sum is 31.

The square root of 127712272 is about 11300.9854437567. The cubic root of 127712272 is about 503.5905173197.

Adding to 127712272 its reverse (272217721), we get a palindrome (399929993).

The spelling of 127712272 in words is "one hundred twenty-seven million, seven hundred twelve thousand, two hundred seventy-two".