1215260632 has 16 divisors (see below), whose sum is σ = 2299910760. Its totient is φ = 601951104.

The previous prime is 1215260561. The next prime is 1215260659. The reversal of 1215260632 is 2360625121.

It is a self number, because there is not a number n which added to its sum of digits gives 1215260632.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 708993 + ... + 710704.

Almost surely, 2^1215260632 is an apocalyptic number.

It is an amenable number.

1215260632 is a deficient number, since it is larger than the sum of its proper divisors (1084650128).

1215260632 is a wasteful number, since it uses less digits than its factorization.

1215260632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419810 (or 1419806 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1215260632 is about 34860.5885205629. The cubic root of 1215260632 is about 1067.1442854982.

Adding to 1215260632 its reverse (2360625121), we get a palindrome (3575885753).

The spelling of 1215260632 in words is "one billion, two hundred fifteen million, two hundred sixty thousand, six hundred thirty-two".