1115527229 has 2 divisors, whose sum is σ = 1115527230. Its totient is φ = 1115527228.

The previous prime is 1115527223. The next prime is 1115527241. The reversal of 1115527229 is 9227255111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 734301604 + 381225625 = 27098^2 + 19525^2 .

It is a cyclic number.

It is not a de Polignac number, because 1115527229 - 2⁴ = 1115527213 is a prime.

It is a super-3 number, since 3×1115527229³ (a number of 28 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1115527223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557763614 + 557763615.

It is an arithmetic number, because the mean of its divisors is an integer number (557763615).

Almost surely, 2^1115527229 is an apocalyptic number.

It is an amenable number.

1115527229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115527229 is an equidigital number, since it uses as much as digits as its factorization.

1115527229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 35.

The square root of 1115527229 is about 33399.5094125647. The cubic root of 1115527229 is about 1037.1145452337.

The spelling of 1115527229 in words is "one billion, one hundred fifteen million, five hundred twenty-seven thousand, two hundred twenty-nine".