1215000007 has 4 divisors (see below), whose sum is σ = 1308461560. Its totient is φ = 1121538456.

The previous prime is 1214999999. The next prime is 1215000023. The reversal of 1215000007 is 7000005121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1215000007 - 2³ = 1214999999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215000097) by changing a digit.

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, 46730757 + ... + 46730782.

It is an arithmetic number, because the mean of its divisors is an integer number (327115390).

Almost surely, 2^1215000007 is an apocalyptic number.

1215000007 is a deficient number, since it is larger than the sum of its proper divisors (93461553).

1215000007 is an equidigital number, since it uses as much as digits as its factorization.

1215000007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93461552.

The product of its (nonzero) digits is 70, while the sum is 16.

The square root of 1215000007 is about 34856.8502162774. The cubic root of 1215000007 is about 1067.0679933963.

Adding to 1215000007 its reverse (7000005121), we get a palindrome (8215005128).

The spelling of 1215000007 in words is "one billion, two hundred fifteen million, seven", and thus it is an aban number.