1215013007 has 24 divisors (see below), whose sum is σ = 1388973600. Its totient is φ = 1056369600.

The previous prime is 1215012991. The next prime is 1215013021. The reversal of 1215013007 is 7003105121.

It is not a de Polignac number, because 1215013007 - 2⁴ = 1215012991 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1215013007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215013057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 933257 + ... + 934557.

It is an arithmetic number, because the mean of its divisors is an integer number (57873900).

Almost surely, 2^1215013007 is an apocalyptic number.

1215013007 is a deficient number, since it is larger than the sum of its proper divisors (173960593).

1215013007 is a wasteful number, since it uses less digits than its factorization.

1215013007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551 (or 1532 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 1215013007 is about 34857.0366927540. The cubic root of 1215013007 is about 1067.0717991121.

Adding to 1215013007 its reverse (7003105121), we get a palindrome (8218118128).

The spelling of 1215013007 in words is "one billion, two hundred fifteen million, thirteen thousand, seven".