1149255589 has 2 divisors, whose sum is σ = 1149255590. Its totient is φ = 1149255588.

The previous prime is 1149255521. The next prime is 1149255593. The reversal of 1149255589 is 9855529411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 699179364 + 450076225 = 26442^2 + 21215^2 .

It is a cyclic number.

It is not a de Polignac number, because 1149255589 - 2¹³ = 1149247397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1149255509) 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, 574627794 + 574627795.

It is an arithmetic number, because the mean of its divisors is an integer number (574627795).

Almost surely, 2^1149255589 is an apocalyptic number.

It is an amenable number.

1149255589 is a deficient number, since it is larger than the sum of its proper divisors (1).

1149255589 is an equidigital number, since it uses as much as digits as its factorization.

1149255589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648000, while the sum is 49.

The square root of 1149255589 is about 33900.6723974614. The cubic root of 1149255589 is about 1047.4634430351.

It can be divided in two parts, 11492 and 55589, that added together give a square (67081 = 259²).

The spelling of 1149255589 in words is "one billion, one hundred forty-nine million, two hundred fifty-five thousand, five hundred eighty-nine".