1115725097 has 2 divisors, whose sum is σ = 1115725098. Its totient is φ = 1115725096.

The previous prime is 1115725067. The next prime is 1115725103. The reversal of 1115725097 is 7905275111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 653518096 + 462207001 = 25564^2 + 21499^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1115725097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1115725097.

It is not a weakly prime, because it can be changed into another prime (1115725067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557862548 + 557862549.

It is an arithmetic number, because the mean of its divisors is an integer number (557862549).

Almost surely, 2^1115725097 is an apocalyptic number.

It is an amenable number.

1115725097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115725097 is an equidigital number, since it uses as much as digits as its factorization.

1115725097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22050, while the sum is 38.

The square root of 1115725097 is about 33402.4714205401. The cubic root of 1115725097 is about 1037.1758614268.

The spelling of 1115725097 in words is "one billion, one hundred fifteen million, seven hundred twenty-five thousand, ninety-seven".