1215413982 has 12 divisors (see below), whose sum is σ = 2633397000. Its totient is φ = 405137988.

The previous prime is 1215413981. The next prime is 1215413987. The reversal of 1215413982 is 2893145121.

1215413982 is a `hidden beast` number, since 1 + 2 + 1 + 541 + 39 + 82 = 666.

It is a super-2 number, since 2×1215413982² = 2954462295282192648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215413981) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33761482 + ... + 33761517.

It is an arithmetic number, because the mean of its divisors is an integer number (219449750).

Almost surely, 2^1215413982 is an apocalyptic number.

1215413982 is an abundant number, since it is smaller than the sum of its proper divisors (1417983018).

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

1215413982 is a wasteful number, since it uses less digits than its factorization.

1215413982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67523007 (or 67523004 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 1215413982 is about 34862.7879263836. The cubic root of 1215413982 is about 1067.1891701616.

The spelling of 1215413982 in words is "one billion, two hundred fifteen million, four hundred thirteen thousand, nine hundred eighty-two".