1155364643 has 2 divisors, whose sum is σ = 1155364644. Its totient is φ = 1155364642.

The previous prime is 1155364619. The next prime is 1155364709. The reversal of 1155364643 is 3464635511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1155364643 - 2²⁸ = 886929187 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1155364597 and 1155364606.

It is not a weakly prime, because it can be changed into another prime (1155354643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577682321 + 577682322.

It is an arithmetic number, because the mean of its divisors is an integer number (577682322).

Almost surely, 2^1155364643 is an apocalyptic number.

1155364643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155364643 is an equidigital number, since it uses as much as digits as its factorization.

1155364643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 38.

The square root of 1155364643 is about 33990.6552305189. The cubic root of 1155364643 is about 1049.3161512396.

The spelling of 1155364643 in words is "one billion, one hundred fifty-five million, three hundred sixty-four thousand, six hundred forty-three".