8131530115 has 16 divisors (see below), whose sum is σ = 9806666688. Its totient is φ = 6472728576.

The previous prime is 8131530053. The next prime is 8131530133. The reversal of 8131530115 is 5110351318.

It is a cyclic number.

It is not a de Polignac number, because 8131530115 - 2⁹ = 8131529603 is a prime.

It is a super-2 number, since 2×8131530115² (a number of 21 digits) contains 22 as substring.

It is a Duffinian 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, 1362979 + ... + 1368931.

It is an arithmetic number, because the mean of its divisors is an integer number (612916668).

Almost surely, 2^8131530115 is an apocalyptic number.

8131530115 is a deficient number, since it is larger than the sum of its proper divisors (1675136573).

8131530115 is a wasteful number, since it uses less digits than its factorization.

8131530115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7278.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 8131530115 is about 90174.9971721652. The cubic root of 8131530115 is about 2010.9013156174.

The spelling of 8131530115 in words is "eight billion, one hundred thirty-one million, five hundred thirty thousand, one hundred fifteen".