127212265 has 8 divisors (see below), whose sum is σ = 154055880. Its totient is φ = 100835712.

The previous prime is 127212259. The next prime is 127212289. The reversal of 127212265 is 562212721.

It can be written as a sum of positive squares in 4 ways, for example, as 37417689 + 89794576 = 6117^2 + 9476^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 127212265 - 2⁹ = 127211753 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116164 + ... + 117253.

It is an arithmetic number, because the mean of its divisors is an integer number (19256985).

Almost surely, 2^127212265 is an apocalyptic number.

It is an amenable number.

127212265 is a deficient number, since it is larger than the sum of its proper divisors (26843615).

127212265 is a wasteful number, since it uses less digits than its factorization.

127212265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233531.

The product of its digits is 3360, while the sum is 28.

The square root of 127212265 is about 11278.8414741941. The cubic root of 127212265 is about 502.9324544656.

Adding to 127212265 its reverse (562212721), we get a palindrome (689424986).

The spelling of 127212265 in words is "one hundred twenty-seven million, two hundred twelve thousand, two hundred sixty-five".