1115084869 has 2 divisors, whose sum is σ = 1115084870. Its totient is φ = 1115084868.

The previous prime is 1115084843. The next prime is 1115084881. The reversal of 1115084869 is 9684805111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1028035969 + 87048900 = 32063^2 + 9330^2 .

It is a cyclic number.

It is not a de Polignac number, because 1115084869 - 2⁹ = 1115084357 is a prime.

It is a super-2 number, since 2×1115084869² = 2486828530145494322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1115084899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557542434 + 557542435.

It is an arithmetic number, because the mean of its divisors is an integer number (557542435).

Almost surely, 2^1115084869 is an apocalyptic number.

It is an amenable number.

1115084869 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115084869 is an equidigital number, since it uses as much as digits as its factorization.

1115084869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 43.

The square root of 1115084869 is about 33392.8865029665. The cubic root of 1115084869 is about 1036.9774385711.

The spelling of 1115084869 in words is "one billion, one hundred fifteen million, eighty-four thousand, eight hundred sixty-nine".