1215371135 has 16 divisors (see below), whose sum is σ = 1628035200. Its totient is φ = 863348640.

The previous prime is 1215371117. The next prime is 1215371189. The reversal of 1215371135 is 5311735121.

It is not a de Polignac number, because 1215371135 - 2⁶ = 1215371071 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1215371098 and 1215371107.

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 15 ways as a sum of consecutive naturals, for example, 254585 + ... + 259314.

It is an arithmetic number, because the mean of its divisors is an integer number (101752200).

Almost surely, 2^1215371135 is an apocalyptic number.

1215371135 is a deficient number, since it is larger than the sum of its proper divisors (412664065).

1215371135 is a wasteful number, since it uses less digits than its factorization.

1215371135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513958.

The product of its digits is 3150, while the sum is 29.

The square root of 1215371135 is about 34862.1734118801. The cubic root of 1215371135 is about 1067.1766294711.

The spelling of 1215371135 in words is "one billion, two hundred fifteen million, three hundred seventy-one thousand, one hundred thirty-five".