1115530931 has 2 divisors, whose sum is σ = 1115530932. Its totient is φ = 1115530930.

The previous prime is 1115530883. The next prime is 1115530957. The reversal of 1115530931 is 1390355111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1115530931 - 2¹⁰ = 1115529907 is a prime.

It is a super-2 number, since 2×1115530931² = 2488818516035453522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1115530894 and 1115530903.

It is not a weakly prime, because it can be changed into another prime (1115532931) by changing a digit.

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 as a sum of consecutive naturals, namely, 557765465 + 557765466.

It is an arithmetic number, because the mean of its divisors is an integer number (557765466).

Almost surely, 2^1115530931 is an apocalyptic number.

1115530931 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115530931 is an equidigital number, since it uses as much as digits as its factorization.

1115530931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2025, while the sum is 29.

The square root of 1115530931 is about 33399.5648324944. The cubic root of 1115530931 is about 1037.1156924921.

The spelling of 1115530931 in words is "one billion, one hundred fifteen million, five hundred thirty thousand, nine hundred thirty-one".