1215284966 has 36 divisors (see below), whose sum is σ = 2148811308. Its totient is φ = 513984744.

The previous prime is 1215284953. The next prime is 1215285007. The reversal of 1215284966 is 6694825121.

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 17 ways as a sum of consecutive naturals, for example, 610625 + ... + 612611.

It is an arithmetic number, because the mean of its divisors is an integer number (59689203).

Almost surely, 2^1215284966 is an apocalyptic number.

1215284966 is a deficient number, since it is larger than the sum of its proper divisors (933526342).

1215284966 is an equidigital number, since it uses as much as digits as its factorization.

1215284966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161 (or 2075 counting only the distinct ones).

The product of its digits is 207360, while the sum is 44.

The square root of 1215284966 is about 34860.9375375936. The cubic root of 1215284966 is about 1067.1514081721.

The spelling of 1215284966 in words is "one billion, two hundred fifteen million, two hundred eighty-four thousand, nine hundred sixty-six".