1164581543 has 2 divisors, whose sum is σ = 1164581544. Its totient is φ = 1164581542.

The previous prime is 1164581521. The next prime is 1164581591. The reversal of 1164581543 is 3451854611.

It is a weak prime.

It is an emirp because it is prime and its reverse (3451854611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1164581543 - 2²⁶ = 1097472679 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1164581497 and 1164581506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1164581443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582290771 + 582290772.

It is an arithmetic number, because the mean of its divisors is an integer number (582290772).

Almost surely, 2^1164581543 is an apocalyptic number.

1164581543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1164581543 is an equidigital number, since it uses as much as digits as its factorization.

1164581543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57600, while the sum is 38.

The square root of 1164581543 is about 34125.9658178344. The cubic root of 1164581543 is about 1052.0990641361.

The spelling of 1164581543 in words is "one billion, one hundred sixty-four million, five hundred eighty-one thousand, five hundred forty-three".