127215252 has 24 divisors (see below), whose sum is σ = 329817600. Its totient is φ = 42405048.

The previous prime is 127215247. The next prime is 127215271. The reversal of 127215252 is 252512721.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 7 ways as a sum of consecutive naturals, for example, 588852 + ... + 589067.

It is an arithmetic number, because the mean of its divisors is an integer number (13742400).

Almost surely, 2^127215252 is an apocalyptic number.

127215252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

127215252 is an abundant number, since it is smaller than the sum of its proper divisors (202602348).

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

127215252 is a wasteful number, since it uses less digits than its factorization.

127215252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177932 (or 1177924 counting only the distinct ones).

The product of its digits is 2800, while the sum is 27.

The square root of 127215252 is about 11278.9738894990. The cubic root of 127215252 is about 502.9363907933.

Adding to 127215252 its reverse (252512721), we get a palindrome (379727973).

The spelling of 127215252 in words is "one hundred twenty-seven million, two hundred fifteen thousand, two hundred fifty-two".