1115413279 has 2 divisors, whose sum is σ = 1115413280. Its totient is φ = 1115413278.

The previous prime is 1115413223. The next prime is 1115413301. The reversal of 1115413279 is 9723145111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1115413279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1115410279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557706639 + 557706640.

It is an arithmetic number, because the mean of its divisors is an integer number (557706640).

Almost surely, 2^1115413279 is an apocalyptic number.

1115413279 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115413279 is an equidigital number, since it uses as much as digits as its factorization.

1115413279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 34.

The square root of 1115413279 is about 33397.8035056199. The cubic root of 1115413279 is about 1037.0792306239.

The spelling of 1115413279 in words is "one billion, one hundred fifteen million, four hundred thirteen thousand, two hundred seventy-nine".