1115516653 has 2 divisors, whose sum is σ = 1115516654. Its totient is φ = 1115516652.

The previous prime is 1115516651. The next prime is 1115516687. The reversal of 1115516653 is 3566155111.

It is an a-pointer prime, because the next prime (1115516687) can be obtained adding 1115516653 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 833881129 + 281635524 = 28877^2 + 16782^2 .

It is a cyclic number.

It is not a de Polignac number, because 1115516653 - 2¹ = 1115516651 is a prime.

Together with 1115516651, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1115516651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557758326 + 557758327.

It is an arithmetic number, because the mean of its divisors is an integer number (557758327).

Almost surely, 2^1115516653 is an apocalyptic number.

It is an amenable number.

1115516653 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115516653 is an equidigital number, since it uses as much as digits as its factorization.

1115516653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13500, while the sum is 34.

The square root of 1115516653 is about 33399.3510865106. The cubic root of 1115516653 is about 1037.1112676929. Note that the first 3 decimals are identical.

The spelling of 1115516653 in words is "one billion, one hundred fifteen million, five hundred sixteen thousand, six hundred fifty-three".