1215252502 has 16 divisors (see below), whose sum is σ = 1925665200. Its totient is φ = 573592320.

The previous prime is 1215252481. The next prime is 1215252557. The reversal of 1215252502 is 2052525121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46227 + ... + 67582.

It is an arithmetic number, because the mean of its divisors is an integer number (120354075).

Almost surely, 2^1215252502 is an apocalyptic number.

1215252502 is a deficient number, since it is larger than the sum of its proper divisors (710412698).

1215252502 is a wasteful number, since it uses less digits than its factorization.

1215252502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114111.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 1215252502 is about 34860.4719130421. The cubic root of 1215252502 is about 1067.1419057885.

Adding to 1215252502 its reverse (2052525121), we get a palindrome (3267777623).

The spelling of 1215252502 in words is "one billion, two hundred fifteen million, two hundred fifty-two thousand, five hundred two".