1011386489 has 2 divisors, whose sum is σ = 1011386490. Its totient is φ = 1011386488.

The previous prime is 1011386479. The next prime is 1011386573. The reversal of 1011386489 is 9846831101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 897601600 + 113784889 = 29960^2 + 10667^2 .

It is an emirp because it is prime and its reverse (9846831101) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011386489 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011386449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505693244 + 505693245.

It is an arithmetic number, because the mean of its divisors is an integer number (505693245).

Almost surely, 2^1011386489 is an apocalyptic number.

It is an amenable number.

1011386489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011386489 is an equidigital number, since it uses as much as digits as its factorization.

1011386489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 1011386489 is about 31802.3032027556. The cubic root of 1011386489 is about 1003.7811809834.

The spelling of 1011386489 in words is "one billion, eleven million, three hundred eighty-six thousand, four hundred eighty-nine".