1131502515 has 32 divisors (see below), whose sum is σ = 2126912256. Its totient is φ = 506405760.

The previous prime is 1131502469. The next prime is 1131502553. The reversal of 1131502515 is 5152051311.

It is not a de Polignac number, because 1131502515 - 2¹⁵ = 1131469747 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 261609 + ... + 265898.

It is an arithmetic number, because the mean of its divisors is an integer number (66466008).

Almost surely, 2^1131502515 is an apocalyptic number.

1131502515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1131502515 is a deficient number, since it is larger than the sum of its proper divisors (995409741).

1131502515 is a wasteful number, since it uses less digits than its factorization.

1131502515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527539.

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 1131502515 is about 33637.8137666526. The cubic root of 1131502515 is about 1042.0418818812.

Adding to 1131502515 its reverse (5152051311), we get a palindrome (6283553826).

The spelling of 1131502515 in words is "one billion, one hundred thirty-one million, five hundred two thousand, five hundred fifteen".