1115411513 has 2 divisors, whose sum is σ = 1115411514. Its totient is φ = 1115411512.

The previous prime is 1115411501. The next prime is 1115411551. The reversal of 1115411513 is 3151145111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1081620544 + 33790969 = 32888^2 + 5813^2 .

It is a cyclic number.

It is not a de Polignac number, because 1115411513 - 2¹⁸ = 1115149369 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1115413513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557705756 + 557705757.

It is an arithmetic number, because the mean of its divisors is an integer number (557705757).

Almost surely, 2^1115411513 is an apocalyptic number.

It is an amenable number.

1115411513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115411513 is an equidigital number, since it uses as much as digits as its factorization.

1115411513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 300, while the sum is 23.

The square root of 1115411513 is about 33397.7770667450. Note that the first 3 decimals coincide. The cubic root of 1115411513 is about 1037.0786832982.

Adding to 1115411513 its reverse (3151145111), we get a palindrome (4266556624).

The spelling of 1115411513 in words is "one billion, one hundred fifteen million, four hundred eleven thousand, five hundred thirteen".