1115041061 has 2 divisors, whose sum is σ = 1115041062. Its totient is φ = 1115041060.

The previous prime is 1115041009. The next prime is 1115041069. The reversal of 1115041061 is 1601405111.

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., 643890625 + 471150436 = 25375^2 + 21706^2 .

It is a cyclic number.

It is not a de Polignac number, because 1115041061 - 2¹⁰ = 1115040037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1115041069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557520530 + 557520531.

It is an arithmetic number, because the mean of its divisors is an integer number (557520531).

Almost surely, 2^1115041061 is an apocalyptic number.

It is an amenable number.

1115041061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115041061 is an equidigital number, since it uses as much as digits as its factorization.

1115041061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 20.

The square root of 1115041061 is about 33392.2305484375. The cubic root of 1115041061 is about 1036.9638585876.

Adding to 1115041061 its reverse (1601405111), we get a palindrome (2716446172).

The spelling of 1115041061 in words is "one billion, one hundred fifteen million, forty-one thousand, sixty-one".