1115234291 has 2 divisors, whose sum is σ = 1115234292. Its totient is φ = 1115234290.

The previous prime is 1115234243. The next prime is 1115234299. The reversal of 1115234291 is 1924325111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1115234291 is a prime.

It is not a weakly prime, because it can be changed into another prime (1115234299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557617145 + 557617146.

It is an arithmetic number, because the mean of its divisors is an integer number (557617146).

Almost surely, 2^1115234291 is an apocalyptic number.

1115234291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115234291 is an equidigital number, since it uses as much as digits as its factorization.

1115234291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 29.

The square root of 1115234291 is about 33395.1237608127. The cubic root of 1115234291 is about 1037.0237550225.

The spelling of 1115234291 in words is "one billion, one hundred fifteen million, two hundred thirty-four thousand, two hundred ninety-one".