1215104264 has 48 divisors (see below), whose sum is σ = 2636113200. Its totient is φ = 523242720.

The previous prime is 1215104251. The next prime is 1215104279. The reversal of 1215104264 is 4624015121.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14642 + ... + 51425.

It is an arithmetic number, because the mean of its divisors is an integer number (54919025).

Almost surely, 2^1215104264 is an apocalyptic number.

It is an amenable number.

1215104264 is an abundant number, since it is smaller than the sum of its proper divisors (1421008936).

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

1215104264 is a wasteful number, since it uses less digits than its factorization.

1215104264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66114 (or 66099 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1215104264 is about 34858.3456865067. The cubic root of 1215104264 is about 1067.0985135952.

Adding to 1215104264 its reverse (4624015121), we get a palindrome (5839119385).

The spelling of 1215104264 in words is "one billion, two hundred fifteen million, one hundred four thousand, two hundred sixty-four".