1163587489 has 2 divisors, whose sum is σ = 1163587490. Its totient is φ = 1163587488.

The previous prime is 1163587391. The next prime is 1163587501. The reversal of 1163587489 is 9847853611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 925193889 + 238393600 = 30417^2 + 15440^2 .

It is a cyclic number.

It is not a de Polignac number, because 1163587489 - 2²³ = 1155198881 is a prime.

It is not a weakly prime, because it can be changed into another prime (1163557489) 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, 581793744 + 581793745.

It is an arithmetic number, because the mean of its divisors is an integer number (581793745).

Almost surely, 2^1163587489 is an apocalyptic number.

It is an amenable number.

1163587489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1163587489 is an equidigital number, since it uses as much as digits as its factorization.

1163587489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 52.

The square root of 1163587489 is about 34111.3982269857. The cubic root of 1163587489 is about 1051.7996315493.

The spelling of 1163587489 in words is "one billion, one hundred sixty-three million, five hundred eighty-seven thousand, four hundred eighty-nine".