127215256 has 64 divisors (see below), whose sum is σ = 279982080. Its totient is φ = 53066880.

The previous prime is 127215247. The next prime is 127215271. The reversal of 127215256 is 652512721.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 570361 + ... + 570583.

It is an arithmetic number, because the mean of its divisors is an integer number (4374720).

Almost surely, 2^127215256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 127215256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139991040).

127215256 is an abundant number, since it is smaller than the sum of its proper divisors (152766824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

127215256 is a wasteful number, since it uses less digits than its factorization.

127215256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464 (or 460 counting only the distinct ones).

The product of its digits is 8400, while the sum is 31.

The square root of 127215256 is about 11278.9740668201. The cubic root of 127215256 is about 502.9363960645.

Adding to 127215256 its reverse (652512721), we get a palindrome (779727977).

The spelling of 127215256 in words is "one hundred twenty-seven million, two hundred fifteen thousand, two hundred fifty-six".