1089346549 has 2 divisors, whose sum is σ = 1089346550. Its totient is φ = 1089346548.

The previous prime is 1089346537. The next prime is 1089346567. The reversal of 1089346549 is 9456439801.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1070467524 + 18879025 = 32718^2 + 4345^2 .

It is a cyclic number.

It is not a de Polignac number, because 1089346549 - 2⁷ = 1089346421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1089346529) 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, 544673274 + 544673275.

It is an arithmetic number, because the mean of its divisors is an integer number (544673275).

Almost surely, 2^1089346549 is an apocalyptic number.

It is an amenable number.

1089346549 is a deficient number, since it is larger than the sum of its proper divisors (1).

1089346549 is an equidigital number, since it uses as much as digits as its factorization.

1089346549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933120, while the sum is 49.

The square root of 1089346549 is about 33005.2503247589. The cubic root of 1089346549 is about 1028.9367697505.

The spelling of 1089346549 in words is "one billion, eighty-nine million, three hundred forty-six thousand, five hundred forty-nine".