1215000002 has 16 divisors (see below), whose sum is σ = 1866052320. Its totient is φ = 593000352.

The previous prime is 1214999999. The next prime is 1215000023. The reversal of 1215000002 is 2000005121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176273 + ... + 183035.

It is an arithmetic number, because the mean of its divisors is an integer number (116628270).

Almost surely, 2^1215000002 is an apocalyptic number.

1215000002 is a deficient number, since it is larger than the sum of its proper divisors (651052318).

1215000002 is a wasteful number, since it uses less digits than its factorization.

1215000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8897.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 1215000002 is about 34856.8501445555. The cubic root of 1215000002 is about 1067.0679919325.

Adding to 1215000002 its reverse (2000005121), we get a palindrome (3215005123).

The spelling of 1215000002 in words is "one billion, two hundred fifteen million, two", and thus it is an aban number.