1155817343 has 2 divisors, whose sum is σ = 1155817344. Its totient is φ = 1155817342.

The previous prime is 1155817331. The next prime is 1155817381. The reversal of 1155817343 is 3437185511.

It is an a-pointer prime, because the next prime (1155817381) can be obtained adding 1155817343 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1155817343 - 2⁸ = 1155817087 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1155817297 and 1155817306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155817393) 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, 577908671 + 577908672.

It is an arithmetic number, because the mean of its divisors is an integer number (577908672).

Almost surely, 2^1155817343 is an apocalyptic number.

1155817343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155817343 is an equidigital number, since it uses as much as digits as its factorization.

1155817343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 38.

The square root of 1155817343 is about 33997.3137615312. The cubic root of 1155817343 is about 1049.4531825500.

The spelling of 1155817343 in words is "one billion, one hundred fifty-five million, eight hundred seventeen thousand, three hundred forty-three".