127215232 has 16 divisors (see below), whose sum is σ = 253436850. Its totient is φ = 63607552.

The previous prime is 127215217. The next prime is 127215247. The reversal of 127215232 is 232512721.

It is an interprime number because it is at equal distance from previous prime (127215217) and next prime (127215247).

It can be written as a sum of positive squares in only one way, i.e., 71503936 + 55711296 = 8456^2 + 7464^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 127215197 and 127215206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496807 + ... + 497062.

Almost surely, 2^127215232 is an apocalyptic number.

It is an amenable number.

127215232 is a deficient number, since it is larger than the sum of its proper divisors (126221618).

127215232 is an frugal number, since it uses more digits than its factorization.

127215232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993883 (or 993871 counting only the distinct ones).

The product of its digits is 1680, while the sum is 25.

The square root of 127215232 is about 11278.9730028935. The cubic root of 127215232 is about 502.9363644371.

Adding to 127215232 its reverse (232512721), we get a palindrome (359727953).

The spelling of 127215232 in words is "one hundred twenty-seven million, two hundred fifteen thousand, two hundred thirty-two".