1134457789 has 2 divisors, whose sum is σ = 1134457790. Its totient is φ = 1134457788.

The previous prime is 1134457769. The next prime is 1134457799. The reversal of 1134457789 is 9877544311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 721352164 + 413105625 = 26858^2 + 20325^2 .

It is an emirp because it is prime and its reverse (9877544311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1134457789 - 2¹³ = 1134449597 is a prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1134457729) 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, 567228894 + 567228895.

It is an arithmetic number, because the mean of its divisors is an integer number (567228895).

Almost surely, 2^1134457789 is an apocalyptic number.

It is an amenable number.

1134457789 is a deficient number, since it is larger than the sum of its proper divisors (1).

1134457789 is an equidigital number, since it uses as much as digits as its factorization.

1134457789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 846720, while the sum is 49.

The square root of 1134457789 is about 33681.7129760349. The cubic root of 1134457789 is about 1042.9482996986.

The spelling of 1134457789 in words is "one billion, one hundred thirty-four million, four hundred fifty-seven thousand, seven hundred eighty-nine".